Abstract: The notion of a self-pattern, as developed in the pattern theory of self, which holds that the self is best explained in terms of the kind of reality that pertains to a dynamical pattern, acknowledges the importance of neural dynamics, but also expands the account of self to extra-neural (embodied and enactive) dynamics. The pattern theory of self, however, has been criticized for failing to explicate the dynamical relations among elements (...) of the self-pattern; as such, it seems to be nothing more than a mere list of elements. We’ll argue that the dynamics of a self-pattern are reflected in three significant and interrelated ways that allow for investigation. First, a self-pattern is reflectively reiterated in its narrative component. Second, studies of psychiatric or neurological disorders can help us understand the precise nature of the dynamical relations in a self-pattern, and how they can fail. Third, referencing predictive processing accounts, neuroscience can also help to explicate the dynamical relations that constitute the self-pattern. (shrink)

Categorization-based diagnosis, which endeavors to be consistent with the third-person, objective measures of science, is not always adequate with respect to problems concerning diagnostic accuracy, demarcation problems when there are comorbidities, well-documented problems of symptom amplification, and complications of stigmatization and looping effects. While psychiatric categories have proved useful and convenient for clinicians in identifying a recognizable constellation of symptoms typical for a particular disorder for the purposes of communication and eligibility for treatment regimes, the reification of these categories has (...) without doubt had negative consequences for the patient and also for the general understanding of psychiatric disorders. We argue that a complementary, integrated framework that focuses on descriptive symptom-based classifications (drawing on phenomenological interview methods and narrative) combined with a more comprehensive conception of the human subject (found in the pattern theory of self), can not only offer a solution to some of the vexed issues of psychiatric diagnosis but also support more efficacious therapeutic interventions. (shrink)

The paper draws on an algorithmic criterion to demonstrate that the self is a composite, scattered, and patterned object. It also addresses the question of extendedness of the self-pattern. Based on the criteria drawn from algorithmic complexity, I argue that although the self-pattern possesses a genuinely extended aspect the self-pattern and its environment do not constitute a genuine composite object.

Through extensive readings in philosophical, legal, medical, and imaginative writing, this book explores notions and experiences of being a person from European antiquity to Descartes. It offers quite new interpretations of what it was to be a person—to experience who-ness—in other times and places, involving new understandings of knowing, willing, and acting, as well as of political and material life, the play of public and private, passions and emotions. The trajectory the author reveals reaches from the ancient sense of personhood (...) as set in a totality of surroundings inseparable from the person, to an increasing sense of impermeability to the world, in which anger has replaced love in affirming a sense of self. The author develops his analysis through an impressive range of authors, languages, and texts: from Cicero, Seneca, and Galen; through Avicenna, Hildegard of Bingen, and Heloise and Abelard; to Petrarch, Montaigne, and Descartes. (shrink)

The aims of this paper are to: (1) identify the best framework for comprehending multidimensional impact of deep brain stimulation on the self; (2) identify weaknesses of this framework; (3) propose refinements to it; (4) in pursuing (3), show why and how this framework should be extended with additional moral aspects and demonstrate their interrelations; (5) define how moral aspects relate to the framework; (6) show the potential consequences of including moral aspects on evaluating DBS’s impact on patients’ selves. (...) Regarding (1), I argue that the pattern theory of self can be regarded as such a framework. In realizing (2) and (3), I indicate that most relevant issues concerning PTS that require resolutions are ontological issues, including the persistence question, the “specificity problem”, and finding lacking relevant aspects of the self. In realizing (4), I identify aspects of the self not included in PTS which are desperately needed to investigate the full range of potentially relevant DBS-induced changes—authenticity, autonomy, and responsibility, and conclude that how we define authenticity will have implications for our concept of autonomy, which in turn will determine how we think about responsibility. Concerning (5), I discuss a complex relation between moral aspects and PTS—on one hand, they serve as the lens through which a particular self-pattern can be evaluated; on the other, they are, themselves, products of dynamical interactions of various self-aspects. Finally, I discuss (6), demonstrating novel way of understanding the effects of DBS on patients’ selves. (shrink)

In 1972, we proposed a theory of biological pattern formation in which concentration maxima of pattern forming substances are generated through local self- enhancement in conjunction with long range inhibition. Since then, much evidence in various developmental systems has confirmed the importance of autocatalytic feedback loops combined with inhibitory interaction. Examples are found in the formation of embryonal organizing regions, in segmentation, in the polarization of individual cells, and in gene activation. By computer simulations, we have shown (...) that the theory accounts for much of the regulatory phenomena observed, including signalling to regenerate removed parts. These self- regulatory features contribute to making development robust and error-tolerant. Furthermore, the resulting pattern is, to a large extent, independent of the details provided by initial conditions and inducing signals. (shrink)

Building on the account of a pattern-theory of self introduced by Shaun Gallagher, this article investigates the unique role of the narrative dimension of the self within the self-pattern. According to a pattern-theory, the self is constituted by a cluster of dimensions that interact with each other. A particular variation of this pattern constitutes a self. This article advances the argument that for selves who narrate, the narrative dimension of the (...) class='Hi'>self takes a special role that cuts across the other dimensions. First, the pattern-theory of self is introduced and a conceptual and ethical argument for employing a pattern-theory is developed. Second, the distinct role of the narrative dimension of the self is analysed. Through the narrative dimension of the self, we engage in self-definition, integrate and connect the other dimensions of the self, make them intelligible, and ascribe personal meaning to them. And third, the narrator type of self is characterized. Organizing one’s experiences through a self-narrative changes the self. Narrators constitute a unified self, they can actively plan and lead a life and engage in forensic practices, and they integrate the subjective and objective nature of the self. (shrink)

Hierarchies occur widely in evolving self‐organizing ecological, biological, technological, and social networks, but detecting and comparing hierarchies is difficult. Here we present a metric and technique to quantitatively assess the extent to which self‐organizing directed networks exhibit a flow hierarchy. Flow hierarchy is a commonly observed but theoretically overlooked form of hierarchy in networks. We show that the ecological, neurobiological, economic, and information processing networks are generally more hierarchical than their comparable random networks. We further discovered that hierarchy (...) degree has increased over the course of the evolution of Linux kernels. Taken together, our results suggest that hierarchy is a central organizing feature of real‐world evolving networks, and the measurement of hierarchy opens the way to understand the structural regimes and evolutionary patterns of self‐organizing networks. Our measurement technique makes it possible to objectively compare hierarchies of different networks and of different evolutionary stages of a single network, and compare evolving patterns of different networks. It can be applied to various complex systems, which can be represented as directed networks. (shrink)

In the recent history of psychology and cognitive neuroscience, the notion of habit has been reduced to a stimulus-triggered response probability correlation. In this paper we use a computational model to present an alternative theoretical view (with some philosophical implications), where habits are seen as self-maintaining patterns of behavior that share properties in common with self-maintaining biological processes, and that inhabit a complex ecological context, including the presence and influence of other habits. Far from mechanical automatisms, this organismic (...) and self-organizing concept of habit can overcome the dominating atomistic and statistical conceptions, and the high temporal resolution effects of situatedness, embodiment and sensorimotor loops emerge as playing a more central, subtle and complex role in the organization of behavior. The model is based on a novel “iterant deformable sensorimotor medium” (IDSM), designed such that trajectories taken through sensorimotor-space increase the likelihood that in the future, similar trajectories will be taken. We couple the IDSM to sensors and motors of a simulated body and environment and show that under certain conditions, the IDSM forms self-maintaining patterns of activity that operate across the IDSM, the body, and the environment. We present various environments and the resulting habits that form in them. The model acts as an abstraction of habits at a much needed sensorimotor “meso-scale” between microscopic neuron-based models and macroscopic descriptions of behavior. Finally, we discuss how this model and extensions of it can help us understand aspects of behavioral self-organization, historicity and autonomy that remain out of the scope of contemporary representationalist frameworks. (shrink)

Regarding Rachlin's behavioral act/pattern theory of self-control, it is argued that some cases of self-control involve pattern/ pattern conflicts rather than merely act/pattern conflicts and that some patterns must be viewed as internal representational states of mind (plans) rather than merely as patterns of actual overt behavior.

This report describes the attributional styles of women university students in Taiwan and compares these patterns to those of men students in Taiwan and women students in the United States. Using a self-presentational perspective on attributions and drawing on data involving audience reactions to attributional accounts in Taiwan and the United States, the author explains the patterns in terms of two sociocultural factors: cultural norms and gender-role stereotypes. Women students in Taiwan are more self-effacing than Taiwan men students (...) and are more external and self-effacing than American women students. They are relatively external because they are Chinese; they are self-effacing and modest because they conform to Chinese cultural values and, more important, to gender-role stereotypes within that culture. Both attributional styles and gender-role stereotypes characterize women as socially responsible and likable but relatively incompetent. (shrink)

Contemporary Western thinkers recognise the destructive effects of long-standing attitudes of mastery over nature and the dualistic and hierarchical thinking that informs them. Heraclitus’ metaphysical position is ideal for reframing these traditional stances for several reasons: first, Heraclitus’ concept of identity is dynamic and relies on a sophisticated understanding of opposites that recognises ambiguity; secondly, his philosophical position produces a model of truth as multiple rather than univocal; and finally, in Heraclitus’ self-making kosmos, human beings are not separate from (...) the processes of physis but inextricably entangled in them. Heraclitus’ philosophy offers relevant avenues for reimagining contemporary philosophical issues, particularly theories of identity, the multiplicity of truth, and the proper ethical human relation to nature. (shrink)

The Self and its Disorders develops a philosophical and interdisciplinary approach to the formulation of an “integrative” perspective in psychiatry. In contrast to some integrative approaches that focus on narrow brain-based conceptions, or strictly on symptomology, this book takes its bearings from embodied and enactive conceptions of human experience and builds on a perspective that understands self as a self-pattern—a pattern of processes that include bodily, experiential, affective, cognitive-psychological, reflective, narrative, intersubjective, ecological, and normative factors. (...) It provides a philosophical analysis of the notion of self-pattern, framed in terms of dynamical organization. It then draws on phenomenological, developmental, clinical, and experimental evidence to propose a method for studying the effects of psychopathologies on the self-pattern, and includes discussions of network theory, predictive processing models, and the role of narrative. This book explores the hypothesis that psychiatric disorders are self-disorders, and includes specific discussions of schizophrenia, anxiety disorders, depression, borderline personality disorder, obsessive compulsive disorder and autism spectrum disorder, as well as traumatic effects of torture and solitary confinement. Other topics include diagnostic classification, symptom overlap, and transdiagnostic complexity. Several chapters explore a variety of philosophical issues that relate to therapeutic approaches, including deep brain stimulation, meditation-based interventions, and the use of artificial intelligence and virtual reality. (shrink)

Significance appears as an alignment of stimuli, from a sea of randomly and methodically inputted or stored content into what we might call patterns in the mind. What Klaus Conrad refers to as apophenia, Micheal Shermer as patternicity and Jung as synchronicity, significance serves as synaptic moments recognizing formal elements of a thought, in many cases as individualized personal and possibly ethnocentric experience packets in the mind that have some significance to us. Finding significance in something, or associative significance between (...) things, can lead to some interesting and poetic creative forms of expression, for authors such as August Strindberg or Peter Watts. New ideas form in the mind from some origin. Apophenia, patternicity and synchronicity pose some interesting models for how the mind might process information not originating through the senses alone. Integrating the terms apophenia and ‘noetics’, this article will seek to define apophenoetics as the process and study of the way that patterns form and are processed and decoded in the mind from the sea of random content, virtual imagery and history (past/present/future), without the immediate influence of external stimuli, and could serve as a model for creativity, spiritual transcendence and connecting emotionally with others. (shrink)

The quantization error in a fixed-size Self-Organizing Map (SOM) with unsupervised winner-take-all learning has previously been used successfully to detect, in minimal computation time, highly meaningful changes across images in medical time series and in time series of satellite images. Here, the functional properties of the quantization error in SOM are explored further to show that the metric is capable of reliably discriminating between the finest differences in local contrast intensities and contrast signs. While this capability of the QE (...) is akin to functional characteristics of a specific class of retinal ganglion cells (the so-called Y-cells) in the visual systems of the primate and the cat, the sensitivity of the QE surpasses the capacity limits of human visual detection. Here, the quantization error in the SOM is found to reliably signal changes in contrast or colour when contrast information is removed from or added to the image, but not when the amount and relative weight of contrast information is constant and only the local spatial position of contrast elements in the pattern changes. While the RGB Mean reflects coarser changes in colour or contrast well enough, the SOM-QE is shown to outperform the RGB Mean in the detection of single-pixel changes in images with up to five million pixels. This could have important implications in the context of unsupervised image learning and computational building block approaches to large sets of image data (big data). (shrink)

This longitudinal study explored patterns of basic psychological needs and self-determined motivation, as well as its association with the teaching style and the physical activity enjoyment in a group of students. The sample consisted of 200 secondary education students (105 girls and 95 boys) aged 11 to 13 years (M= 12.65,SD= 0.79) at the start of the study. Students were assessed twice in a 22 month-period. Descriptive analyses were conducted between major variables at both time points, and to explore (...) the number and nature of clusters, we relied on latent profile analysis. The statistical analyses showed three different patterns: downward, stable and upward, with different outcomes and determinants. The downward pattern was associated with more negative enjoyment and a controlling style, while the upward pattern with more positive enjoyment and autonomy support. This study, which was based on a person-centered approach, provided a bigger picture of the interplay between autonomy, competence, relatedness, self-determined motivation, autonomy/control support, and physical activity enjoyment. (shrink)

Self-control, so important in the theory and practice of psychology, has usually been understood introspectively. This target article adopts a behavioral view of the self (as an abstract class of behavioral actions) and of self-control (as an abstract behavioral pattern dominating a particular act) according to which the development of self-control is a molar/molecular conflict in the development of behavioral patterns. This subsumes the more typical view of self-control as a now/later conflict in which (...) an act of self-control is a choice of a larger but later reinforcer over a smaller but sooner reinforcer. If at some future time the smaller-sooner reinforcer will be more valuable than the larger-later reinforcer, self-control may be achieved through a commitment to the largerlater reinforcer prior to that point. According to some, there is a progressive internalization of commitment in the development of self-control. This presents theoretical and empirical problems. In two experiments temporal patterning of choices increased self-control. (shrink)

The representation of knowledge in the law has basically followed a rule-based logical-symbolic paradigm. This paper aims to show how the modeling of legal knowledge can be re-examined using connectionist models, from the perspective of the theory of the dynamics of unstable systems and chaos. We begin by showing the nature of the paradigm shift from a rule-based approach to one based on dynamic structures and by discussing how this would translate into the field of theory of law. In order (...) to show the full potential of this new approach, we start from an experiment with NEUROLEX, in which a neural network was used to model a corpus of French Council of State decisions. We examine the implications of this experiment, especially those concerning the limits of the model used, and show that other connectionist models might correspond more adequately to the nature of legal knowledge. Finally, we propose another neural model which could show not only the rules which emerge from legal qualification (NEUROLEX's goal), but also the way in which a legal qualification process evolves from one concept to another. (shrink)

The primary argument against Rachlin's act-versus-pattern analysis of self-control is that it is wrong to think of a temptation as a solitary act while the alternative is conceived of as an element of a pattern. Either both are solitary acts or both are members of patterns, however different the patterns may be in their complexity and abstractness.

From Dr. Nicole LePera, creator of "the holistic psychologist"-the online phenomenon with more than 2M followers on Instagram-comes a revolutionary approach to self-improvement, integrating the tools of various modalities and disciplines with traditional psychology to offer a practical program that guides readers to create radical change.

Research in cognitive neuroscience and spatial presence suggests that human mental self-localization is tied to one place at a given point in time. In this study, we examined whether it is possible to feel localized at two distinct places at the same time. Participants were exposed to a virtual rollercoaster and they continuously judged to what extent they felt present in the immediate environment and in the mediated environment, respectively. The results show that participants distributed their self-localization to (...) both environments, and the two values added up to closely 100% over time. In addition, even though the judgments are highly idiosyncratic, they were almost perfectly inversely related. This indicates that individuals can distribute their self over two distinct places. These findings provide important insights about understanding of the human self-localization. (shrink)

In the new physics and in the new field of cosmometry, 1 it is the fundamental pattern that results in the motion from which all is created. Everything starts with the point of infinite potential. The tetrahedron at the point gives birth to the cuboctahedron ; its motion and structure result in the creation of the torus structure. The torus structure is self-referencing on a moment by moment basis since all must pass through the center. But isn't (...) class='Hi'>self-referencing the basis for consciousness? It is said that all of creation has awareness, but at different levels. We know plants are aware of threats and of death to other living creatures by the work of Cleve Backster. We know we influence random number generators from the PEAR studies at Princeton. We know baby chicks will influence the movement of robots programed to do a random walk from the work of Rene Peoc'h. Quantum physics has embraced geometry with the work in the equations which explain the Feynman diagrams where particles come in and out of existence; those equations form a structure called the Amplituhedron - which is a quarter of a star tetrahedron. We also know that the tetrahedron can form the star tetrahedron and that each point of the star tetrahedron can form its own star tetrahedron, which can go on infinitely. That is, there is infinity in the finite. As in the fractal and holographic universe, each point or tetrahedron is connected to every other point. If each point has awareness due to formation of the torus, then Hermes teaching of "As above, as below" has meaning in the torus structure. If the torus is the fundamental unit of self-reference, is that the fundamental unit from which consciousness arises? The torus or double torus appears to be fundamental to all of creation - from galaxies to planets to atoms to photons. (shrink)

Given certain standard assumptions-that particular sentences are meaningful, for example, and do genuinely self-attribute their own falsity-the paradoxes appear to show intriguing patterns of generally unstable semantic behavior. In what follows we want to concentrate on those patterns themselves: the pattern of the Liar, for example, which if assumed either true or false appears to oscillate endlessly between truth and falsehood.

The current study examines patterns of attachment/self-protective strategies and rates of unresolved loss/trauma in children and adolescents presenting to a multidisciplinary gender service. Fifty-seven children and adolescents (8.42–15.92 years; 24 birth-assigned males and 33 birth-assigned females) presenting with gender dysphoria participated in structured attachment interviews coded using dynamic-maturational model (DMM) discourse analysis. The children with gender dysphoria were compared to age- and sex-matched children from the community (non-clinical group) and a group of school-age children with mixed psychiatric disorders (mixed (...) psychiatric group). Information about adverse childhood experiences (ACEs), mental health diagnoses, and global level of functioning was also collected. In contrast to children in the non-clinical group, who were classified primarily into the normative attachment patterns (A1-2, B1-5, and C1-2) and who had low rates of unresolved loss/trauma, children with gender dysphoria were mostly classified into the high-risk attachment patterns (A3-4, A5-6, C3-4, C5-6, and A/C) (χ2= 52.66;p< 0.001) and had a high rate of unresolved loss/trauma (χ2= 18.64;p< 0.001). Comorbid psychiatric diagnoses (n= 50; 87.7%) and a history of self-harm, suicidal ideation, or symptoms of distress were also common. Global level of functioning was impaired (range 25–95/100; mean = 54.88;SD= 15.40; median = 55.00). There were no differences between children with gender dysphoria and children with mixed psychiatric disorders on attachment patterns (χ2= 2.43;p= 0.30) and rates of unresolved loss and trauma (χ2= 0.70;p= 0.40).Post hocanalyses showed that lower SES, family constellation (a non-traditional family unit), ACEs—including maltreatment (physical abuse, sexual abuse, emotional abuse, neglect, and exposure to domestic violence)—increased the likelihood of the child being classified into a high risk attachment pattern. Akin to children with other forms of psychological distress, children with gender dysphoria present in the context of multiple interacting risk factors that include at-risk attachment, unresolved loss/trauma, family conflict and loss of family cohesion, and exposure to multiple ACEs. (shrink)

The paper addresses the formation of striking patterns within originally near-homogenous tissue, the process prototypical for embryology, and represented in particularly purist form by cut sections of hydra regenerating, by internal reorganisation of the pre-existing tissue, a complete animal with head and foot. The essential requirements are autocatalytic, self-enhancing activation, combined with inhibitory or depletion effects of wider range – “lateral inhibition”. Not only de-novo-pattern formation, but also well known, striking features of developmental regulation such as induction, inhibition, (...) and proportion regulation can be explained on this basis. The theory provides a mathematical recipe for the construction of molecular models with criteria for the necessary non-linear interactions. It has since been widely applied to different developmental processes. (shrink)

Traditional treatments of Attention Deficit Hyperactivity Disorder have been designed to contain a neurobiological delay that renders individuals less capable of resisting shortsighted behaviors. This work critiques that analysis of ADHD, and proposes an alternative strategy to reduce the incidence of ADHD responses.

Closure for justification is the claim that thinkers are justified in believing the logical consequences of their justified beliefs, at least when those consequences are competently deduced. Many have found this principle to be very plausible. Even more attractive is the special case of Closure known as Single-Premise Closure. In this paper, I present a challenge to Single-Premise Closure. The challenge is based on the phenomenon of rational self-doubt – it can be rational to be less than fully confident (...) in one's beliefs and patterns of reasoning. In rough outline, the argument is as follows: Consider a thinker who deduces a conclusion from a justified initial premise via an incredibly long sequence of small competent deductions. Surely, such a thinker should suspect that he has made a mistake somewhere. And surely, given this, he should not believe the conclusion of the deduction even though he has a justified belief in the initial premise. (shrink)

A broad pattern of correlations between mechanisms of brain function impairment and self-transcendence is shown. The pattern includes such mechanisms as cerebral hypoxia, physiological stress, transcranial magnetic stimulation, trance-induced physiological effects, the action of psychoactive substances and even physical trauma to the brain. In all these cases, subjects report self-transcending experiences o en described as ‘mystical’ and ‘awareness-expanding,’ as well as self-transcending skills o en described as ‘savant.’ The idea that these correlations could be rather (...) trivially accounted for on the basis of disruptions to inhibitory neural processes is reviewed and shown to be implausible. Instead, this paper suggests that an as-of-yet unrecognized causal principle underlying the entire pattern might be at work, whose further elucidation through systematic research could hold great promise. (shrink)

This book investigates whether treaty interpretation at the ECtHR and WTO, which are sometimes perceived as promoting 'self-contained' regimes, could constitute a means for unifying international law, or, conversely, might exacerbate the fragmentation of international law. In this regard, the practice of the ICJ on treaty interpretation is used for comparison, since the ICJ has made the greatest contribution to the development and clarification of international law rules and principles. Providing a critical analysis of cases at the ICJ, ECtHR (...) and WTO, both prior to and since the adoption of the 1969 Vienna Convention on the Law of Treaties, the book reveals how the ECtHR and WTO apply the general rules of treaty interpretation in patterns which are similar to those used by the ICJ to address difficulties in interpreting the text of treaties. Viewed in the light of the ECtHR's and WTO's interpretative practices, both the VCLT's general rules of interpretation and the ICJ's interpretative practice serve to counteract the fragmentation of international law.. (shrink)

Recurrent, unvarying, and seemingly purposeless patterns of action and cognition are part of normal development, but also feature prominently in several neuropsychiatric conditions. Repetitive stereotyped behaviors can be viewed as exaggerated forms of learned habits and frequently correlate with alterations in motor, limbic, and associative basal ganglia circuits. However, it is still unclear how altered basal ganglia feedback signals actually relate to the phenomenological variability of RSBs. Why do behaviorally overlapping phenomena sometimes require different treatment approaches−for example, sensory shielding strategies (...) versus exposure therapy for autism and obsessive-compulsive disorder, respectively? Certain clues may be found in recent models of basal ganglia function that extend well beyond action selection and motivational control, and have implications for sensorimotor integration, prediction, learning under uncertainty, as well as aesthetic learning. In this paper, we systematically compare three exemplary conditions with basal ganglia involvement, obsessive-compulsive disorder, Parkinson’s disease, and autism spectrum conditions, to gain a new understanding of RSBs. We integrate clinical observations and neuroanatomical and neurophysiological alterations with accounts employing the predictive processing framework. Based on this review, we suggest that basal ganglia feedback plays a central role in preconditioning cortical networks to anticipate self-generated, movement-related perception. In this way, basal ganglia feedback appears ideally situated to adjust the salience of sensory signals through precision weighting of new sensory information, relative to the precision of predictions based on prior generated models. Accordingly, behavioral policies may preferentially rely on new data versus existing knowledge, in a spectrum spanning between novelty and stability. RSBs may then represent compensatory or reactive responses, respectively, at the opposite ends of this spectrum. This view places an important role of aesthetic learning on basal ganglia feedback, may account for observed changes in creativity and aesthetic experience in basal ganglia disorders, is empirically testable, and may inform creative art therapies in conditions characterized by stereotyped behaviors. (shrink)

While many different mechanisms contribute to the generation of spatial order in biological development, the formation of morphogenetic fields which in turn direct cell responses giving rise to pattern and form are of major importance and essential for embryogenesis and regeneration. Most likely the fields represent concentration patterns of substances produced by molecular kinetics. Short range autocatalytic activation in conjunction with longer range “lateral” inhibition or depletion effects is capable of generating such patterns (Gierer and Meinhardt, 1972). Non-linear reactions (...) are required, and mathematical criteria were derived to design molecular models capable of pattern generation. The classical embryological feature of proportion regulation can be incorporated into the models. The conditions are mathematically necessary for the simplest two-factor case, and are likely to be a fair approximation in multi-component systems in which activation and inhibition are systems parameters subsuming the action of several agents. Gradients, symmetric and periodic patterns, in one or two dimensions, stable or pulsing in time, can be generated on this basis. Our basic concept of autocatalysis in conjunction with lateral inhibition accounts for self-regulatory biological features, including the reproducible formation of structures from near-uniform initial conditions as required by the logic of the generation cycle. Real tissue form, for instance that of budding Hydra, may often be traced back to local curvature arising within an initially relatively flat cell sheet, the position of evagination being determined by morphogenetic fields. Shell theory developed for architecture may also be applied to such biological processes. (shrink)

We explored the division of parenthood in Chinese families with adolescents by identifying the parental involvement patterns in the data obtained from 786 pairs of parents. Division-of-parenthood patterns were created via factor mixture modeling using self-reported three dimensions of father and mother involvement. Three differential division-of-parenthood patterns were identified: (a) parent-cooperation pattern, where moderate and equivalent involvement existed between mothers and fathers; (b) mother-dominated pattern, where mother involvement was particularly greater than father involvement; and (c) father-dominated (...) class='Hi'>pattern, where father involvement was particularly greater than mother involvement. Families were more likely to be in the mother- or the father-dominated pattern as their levels of positive coparenting behaviors increased. By contrast, as the levels of paternal conflict behavior increased, families were likely to be in the mother-dominated pattern. This study highlighted parents’ individual parenting role, the diverse division-of-parenthood patterns in the family, and the important role of coparenting behavior. (shrink)