Neuron mirror

The neurons mirrors indicate a certain category of Neuron S of the Cerveau which present an activity at the same time when an individual (human or animal) carries out an action and when it observes another individual (in particular sound Espèce) carry out the same action, from where the term mirror .

In cognitive Neurosciences, these neurons mirrors are supposed to play a part in cognitive capacities related to the social life in particular through the Empathie, but also for the training with the capacity of Imitation.

The neurons mirrors are often presented like a major discovery of the Neurosciences.

Discovered

The identification of neurons mirrors during the years 1990 is due to the team of Giacomo Rizzolatti, director of the department of neurosciences of the medical college of Parma.

They were initially observed in the Cortex ventral premotor of the monkey (F5 surface) but also, thereafter, in the rostrale part of the parietal lobule lower. Thereafter, this type of neurons was also found at the Homme and some Oiseau X.

Behavior

The characteristic of these neurons is due to the fact that they discharge from the potential of action while the individual carries out a movement (it is the case for the majority of the neurons of the driving Cortex and premotor) but also when it is motionless and sees (or even hears) a similar action, or that it thinks that it will be carried out by a conspecific.

At the Man, the cerebral Imagerie (Tomographie by emissions of positons for example, or imagery by Imagerie by functional magnetic resonance) could show that certain areas relatively homologous presented a similar activity, it is the case of the Aire of Broca (implied in the Langage) and of the parietal Cortex lower (implied in perception sensory, in particular of space).

Autism

Anomalies of the operation of this system would have been found at autistic .

References

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