Online research in philosophy

Proposition 1 is based on the received Aristotelian analysis of intentional action and a commonsense view about understanding. Proposition 2 represents a consensus view among primatologists about the absence of higher order “theory of mind” capacities in monkeys. Proposition 3 reflects a common interpretation of the functions of so-called “mirror neurons” found in the ventral premotor (F5) cortex of macaque monkeys (e.g., Gallese and Goldman 1998; Rizzolatti and Craighero 2004; Fogassi et al. 2005). Taken at face value, then, this inconsistent triad presents a paradox for understanding the contribution of F5 neurons in macaques to their cognitive capacities. This paradox does not arise for humans because the human analogue to proposition 2 is the obvious candidate for rejection. Nevertheless, the considerations relevant to resolving the paradox for monkeys are also important for a properly skeptical interpretation of the neurological evidence about the mirror neuron system in humans (see Debes, submitted). In this chapter I discuss each of the possibilities for resolving the paradox by rejecting one of the three propositions. Although my philosophical sympathies pError (27674): Unknown form typeError (27725): Unknown form typeError (27815): Unknown form typeresently lie with rejecting proposition 1, some of the arguments depend on empirical knowledge that is presently lacking. Nevertheless, I describe an approach to understanding the functions of F5 mirror..

Selected contributions to the symposium on "Mirror neurons and the evolution of brain and language" held on July 5-8, 2000 in Delmenhorst, Germany.

The condition, known as mirror-touch synesthesia, is related to the activity of mirror neurons, cells recently discovered to fire not only when some animals perform some behavior, such as climbing a tree, but also when they watch another animal do the behavior. For "synesthetes," it's as if their mirror neurons are on overdrive.

Commonsense says we are isolated. After all, our bodies are physically separate. But Seneca’s colamus humanitatem, and John Donne’s observation that “no man is an island” suggests we are neither entirely isolated nor separate. A recent discovery in neuroscience—that of mirror neurons—argues that the brain and the mind is neither built nor functions remote from what happens in other individuals. What are mirror neurons? They are brain cells that process both what happens to or is done by an individual, and, as it were, its perceived “refl ection,” when that same thing happens or is done by another individual. Thus, mirror neurons are both activated when an individual does a particular action, and when that individual perceives that same action done by another. The discovery of mirror neurons suggests we need to radically revise our notions of human nature since they offer a means by which we may not be so separated as we think. Humans unlike other apes are adapted to mirror interact nonverbally when together. Notably, our faces have been evolved to display agile and nimble movements. While this is usually explained as enabling nonverbal communication, a better description would be nonverbal commune based upon mirror neurons. I argue we cherish humanity, colamus humanitatem, because mirror neurons and our adapted mirror interpersonal interface blur the physical boundaries that separate us.

This paper discusses supportive neurological and social evidence for 'collective consciousness', here understood as a shared sense of being together with others in a single or unified experience. Mirror neurons in the premotor and posterior parietal cortices respond to the intentions as well as the actions of other individuals. There are also mirror neurons in the anterior insula and anterior cingulate cortices which have been implicated in empathy. Many authors have considered the likely role of such mirror systems in the development of uniquely human aspects of sociality including language. Though not without criticism, Menant has made the case that mirror-neuron assisted exchanges aided the original advent of self-consciousness and intersubjectivity. Combining these ideas with social mirror theory it is not difficult to imagine the creation of similar dynamical patterns in the emotional and even cognitive neuronal activity of individuals in human groups, creating a feeling in which the participating members experience a unified sense of consciousness. Such instances pose a kind of 'binding problem' in which participating individuals exhibit a degree of 'entanglement'.

Both macaque monkeys and humans have been shown to have what are called ‘mirror neurons’, a class of neurons that respond to goal-related motor-actions, both when these actions are performed by the subject and when they are performed by another individual observed by the subject. Gallese and Goldman (1998) contend that mirror neurons may be seen as ‘a part of, or a precursor to, a more general mind- reading ability’, and that of the two competing theories of mind-reading, mirror neurons lend support to simulation theory. I here offer four reasons why I think mirror neurons do not provide support for simulation theory over its contender, theory theory.

Mirror neurons are neurons which fire in two distinct conditions: (i) when an agent performs a specific action, like a precision grasp of an object using fingers, and (ii) when an agent observes that action performed by another. Some theorists have suggested that the existence of such neurons may lend support to the simulation approach to mindreading (e.g. Gallese and Goldman, 1998, 'Mirror neurons and the simulation theory of mind reading'). In this note I critically examine this suggestion, in both its original and a revised form (due to Iacoboni et al., 2005, 'Grasping the intentions of others with one's own mirror neuron system'), and argue that the existence of mirror neurons can in fact tell us very little about how intentional attribution actually proceeds.

This article presents two different phenomenological paths leading from ego to alter ego: a Husserlian and a Merleau-Pontian way of thinking. These two phenomenological paths serve to disentangle the conceptual–philosophical underpinning of the mirror neurons system hypothesis, in which both ways of thinking are entwined. A Merleau-Pontian re-reading of the mirror neurons system theory is proposed, in which the characteristics of mirror neurons are effectively used in the explanation of action understanding and imitation. This proposal uncovers the remaining necessary presupposition of a minimalized version of the Husserlian concept of pairing and its recent and improved version in terms of the intermodal system. This leads to a layered approach to the constitution of intersubjectivity.

The discovery of mirror neurons has been hailed as one of the most exciting developments in neuroscience in the past few decades. These neurons discharge in response to the observation of others’ actions. But how are we to understand the function of these neurons? In this paper I defend the idea that mirror neurons are best conceived as components of a sensory system that has the function to perceive action. In short, mirror neurons are part of a hitherto unrecognized “sixth sense”. In this spirit, research should move toward developing a psychophysics of mirror neurons.

I discuss Husserl’s account of intersubjectivity in the fifth Cartesian Meditation. I focus on the problem of perceived similarity. I argue that recent work in developmental psychology and neuroscience, concerning intermodal representation and the mirror neuron system, fails to constitute a naturalistic solution to the problem. This can be seen via a comparison between the Husserlian project on the one hand and Molyneux’s Question on the other.