Categorization of behavioural sequences in the prefrontal cortex

Keisetsu Shima, Masaki Isoda, Hajime Mushiake and Jun Tanji ()
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Keisetsu Shima: Tohoku University School of Medicine
Masaki Isoda: Tohoku University School of Medicine
Hajime Mushiake: Tohoku University School of Medicine
Jun Tanji: Tohoku University School of Medicine

Nature, 2007, vol. 445, issue 7125, 315-318

Abstract: Gather your thoughts The prefrontal cortex is thought to be involved in controlling primate behaviour through higher order information processing, though the nature of that processing is unclear. Remembering a large number of individual complex movements can be difficult, but grouping the movements into general categories — such as those that involve repeating the same type of action several times — can make the task easier. Shima et al. report that neurons in the monkey lateral prefrontal cortex are activated before such movements, suggesting that they represent an abstract categorization of motor behaviours, as opposed to the individual sequences themselves. Abstract grouping of this type could be a general property of the prefrontal cortex, perhaps one of the processes facilitating complex behaviour.

Date: 2007
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DOI: 10.1038/nature05470

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