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Anne Giersch [13]A. Giersch [1]
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Anne Giersch
Strasbourg University
  1.  24
    Is Schizophrenia a Disorder of Consciousness? Experimental and Phenomenological Support for Anomalous Unconscious Processing.Anne Giersch & Aaron L. Mishara - 2017 - Frontiers in Psychology 8.
    Decades ago, several authors have proposed that disorders in automatic processing lead to intrusive symptoms or abnormal contents in the consciousness of people with schizophrenia. However, since then, studies have mainly highlighted difficulties in patients’ conscious experiencing and processing but rarely explored how unconscious and conscious mechanisms may interact in producing this experience. We report three lines of research, focusing on the processing of spatial frequencies, unpleasant information, and time-event structure that suggest that impairments occur at both the unconscious and (...)
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  2.  24
    Implicit Timing as the Missing Link Between Neurobiological and Self Disorders in Schizophrenia?Anne Giersch, Laurence Lalanne & Philippe Isope - 2016 - Frontiers in Human Neuroscience 10.
    Disorders of consciousness and the self are at the forefront of schizophrenia symptomatology. Patients are impaired in feeling themselves as the authors of their thoughts and actions. In addition, their flow of consciousness is disrupted, and thought fragmentation has been suggested to be involved in the patients’ difficulties in feeling as being one unique, unchanging self across time. Both impairments are related to self disorders, and both have been investigated at the experimental level. Here we review evidence that both mechanisms (...)
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  3.  14
    Motor Synchronization in Patients With Schizophrenia: Preserved Time Representation With Abnormalities in Predictive Timing.Hélène Wilquin, Yvonne Delevoye-Turrell, Mariama Dione & Anne Giersch - 2018 - Frontiers in Human Neuroscience 12.
    Objective: Basic temporal dysfunctions have been described in patients with schizophrenia, which may impact their ability to connect and synchronize with the outer world. The present study was conducted with the aim to distinguish between interval timing and synchronization difficulties and more generally the spatial-temporal organization disturbances for voluntary actions. A new sensorimotor synchronization task was developed to test these abilities. Method: Twenty-four chronic schizophrenia patients matched with 27 controls performed a spatial-tapping task in which finger taps were to be (...)
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  4.  14
    What Happens in a Moment.Mark A. Elliott & Anne Giersch - 2015 - Frontiers in Psychology 6.
    Therehasbeenevidencefortheverybrief,temporalquantizationofperceptualexperienceatregularintervalsbelo w100msforseveraldecades.Webrieflydescribehowearlierstudiesledtotheconceptof“psychologicalmoment”ofbe tween50and60msduration.Accordingtohistoricaltheories,withinthepsychologicalmomentalleventswouldbepro cessedasco-temporal.Morerecently,alinkwithphysiologicalmechanismshasbeenproposed,accordingtowhichthe 50–60mspsychologicalmomentwouldbedefinedbytheupperlimitrequiredbyneuralmechanismstosynchronizeandthe rebyrepresentasnapshotofcurrentperceptualeventstructure.However,ourownexperimentaldevelopmentsalsoid entifyamorefine-scaled,serializedprocessstructurewithinthepsychologicalmoment.Ourdatasuggeststhatnot alleventsareprocessedasco-temporalwithinthepsychologicalmomentandinstead,someareprocessedsuccessivel y.Thisevidencequestionstheanalogrelationshipbetweensynchronizedprocessandsimultaneousexperienceandop ensdebateontheontologyandfunctionof“moments”inpsychologicalexperience.
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  5.  13
    On Disturbed Time Continuity in Schizophrenia: An Elementary Impairment in Visual Perception?Anne Giersch, Laurence Lalanne, Mitsouko van Assche & Mark A. Elliott - 2013 - Frontiers in Psychology 4.
    Schizophrenia is associated with a series of visual perception impairments, which might impact on the patients’ every day life and be related to clinical symptoms. However, the heterogeneity of the visual disorders make it a challenge to understand both the mechanisms and the consequences of these impairments, i.e., the way patients experience the outer world. Based on earlier psychiatry literature, we argue that issues regarding time might shed a new light on the disorders observed in patients with schizophrenia.We will briefly (...)
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  6.  24
    Unconscious Task Set Priming with Phonological and Semantic Tasks.Sébastien Weibel, Anne Giersch, Stanislas Dehaene & Caroline Huron - 2013 - Consciousness and Cognition 22 (2):517-527.
    Whether unconscious stimuli can modulate the preparation of a cognitive task is still controversial. Using a backward masking paradigm, we investigated whether the modulation could be observed even if the prime was made unconscious in 100% of the trials. In two behavioral experiments, subjects were instructed to initiate a phonological or semantic task on an upcoming word, following an explicit instruction and an unconscious prime. When the SOA between prime and instruction was sufficiently long , primes congruent with the task (...)
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  7.  21
    Minimal Self and Timing Disorders in Schizophrenia: A Case Report.Brice Martin, Nicolas Franck, Michel Cermolacce, Jennifer T. Coull & Anne Giersch - 2018 - Frontiers in Human Neuroscience 12.
    For years, phenomenological psychiatry has proposed that distortions of the temporal structure of consciousness contribute to the abnormal experiences described before schizophrenia emerges, and may relate to basic disturbances in consciousness of the self. However, considering that temporality refers mainly to an implicit aspect of our relationship with the world, disturbances in the temporal structure of consciousness remain difficult to access. Nonetheless, previous studies have shown a correlation between self disorders and the automatic ability to expect an event in time, (...)
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  8.  14
    Dispositional Mindfulness and Subjective Time in Healthy Individuals.Luisa Weiner, Marc Wittmann, Gilles Bertschy & Anne Giersch - 2016 - Frontiers in Psychology 7.
    How a human observer perceives duration depends on the amount of events taking place during the timed interval, but also on psychological dimensions, such as emotional-wellbeing, mindfulness, impulsivity, and rumination. Here we aimed at exploring these influences on duration estimation and passage of time judgments. One hundred and seventeen healthy individuals filled out mindfulness (FFMQ), impulsivity (BIS-11), rumination (RRS), and depression (BDI-sf) questionnaires. Participants also conducted verbal estimation and production tasks in the multiple seconds range. During these timing tasks, subjects (...)
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  9.  9
    Feeling of Control of an Action After Supra and Subliminal Haptic Distortions.Sébastien Weibel, Patrick Eric Poncelet, Yvonne Delevoye-Turrell, Antonio Capobianco, André Dufour, Renaud Brochard, Laurent Ott & Anne Giersch - 2015 - Consciousness and Cognition 35:16-29.
    Here we question the mechanisms underlying the emergence of the feeling of control that can be modulated even when the feeling of being the author of one’s own action is intact. With a haptic robot, participants made series of vertical pointing actions on a virtual surface, which was sometimes postponed by a small temporal delay (15 or 65 ms). Subjects then evaluated their subjective feeling of control. Results showed that after temporal distortions, the hand-trajectories were adapted effectively but that the (...)
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  10.  29
    Focused Attention is Not Enough to Activate Discontinuities in Lines, but Scrutiny Is.Anne Giersch & Serge Caparos - 2005 - Consciousness and Cognition 14 (3):613-632.
    We distinguish between the roles played by spatial attention and conscious intention in terms of their impact on the processing of segmentation signals, like discontinuities in lines, associated with the act of scrutinizing. We showed previously that the processing of discontinuities in lines can be activated. This is evidenced by an impairment in the detection of a gap between parallel elements when it follows a gap between collinear elements in the same location and orientation. This effect is no longer observed (...)
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  11.  3
    Evidence for Visual Temporal Order Processing Below the Threshold for Conscious Perception.Morgane Chassignolle, Anne Giersch & Jennifer T. Coull - 2021 - Cognition 207:104528.
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  12.  18
    Patients with Schizophrenia Do Not Preserve Automatic Grouping When Mentally Re-Grouping Figures: Shedding Light on an Ignored Difficulty.Anne Giersch, Mitsouko van Assche, Rémi L. Capa, Corinne Marrer & Daniel Gounot - 2012 - Frontiers in Psychology 3.
    Looking at a pair of objects is easy when automatic grouping mechanisms bind these objects together, but visual exploration can also be more flexible. It is possible to mentally “re-group” two objects that are not only separate but belong to different pairs of objects. “Re-grouping” is in conflict with automatic grouping, since it entails a separation of each item from the set it belongs to. This ability appears to be impaired in patients with schizophrenia. Here we check if this impairment (...)
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