注意，学習，社会性機能

Brodmann Areas 8 and 9 Including the Frontal Eye Field

ブロードマンは細胞構築に基づきサルとヒトの前頭連合野内に8，9野を割り当てたが，のちの詳しい分析からPetridesらは9/46野を加えた修正版の前頭連合野脳地図を提案した。8野外側部は条件性弁別学習に，8野内の最後部にある前頭眼野は，視覚的注意や眼球運動の制御に関係している。9野外側部，9/46野は実行機能を支えるのに重要な働きをしている。8，9野内側部は心の理論や社会性に関係している。

Abstract

Based on cytoarchitectonic analyses, Brodmann assigned numbers 8 and 9 to certain areas of the dorsal and medial prefrontal cortex (PFC) in humans and monkeys. Petrides and Pandya re-analyzed the cytoarchitectures of the human and monkey PFCs, and proposed slightly different brain maps for both species. They assigned numbers 8, 9 and 9/46 to the areas that were originally named areas 8 and 9. Areas 8 and 9 have both lateral and medial regions respectively. The lateral area 8 is important for conditional discrimination learning. The frontal eye field which occupies the most caudal region of area 8, is responsible for visual attention and control of eye movements. The lateral area 9 and area 9/46 are functionally similar to area 46 and play important roles in executive control. The dorsomedial prefrontal cortex (DMPFC) comprises the medial regions of areas 8 and 9 and is related to “Theory of Mind” and social cognition. The DMPFC is also known to show “default mode of brain activity” (i.e., more activity during rest than during cognitive task).