コメント on "価値に基づいた意思決定をするサルでは,LIPニューロンは,アクション値ではなく,キューアライエンスをコードする"
William T Newsome1, Paul W Glimcher, Jacqueline Gottlieb
1Department of Neurobiology and Howard Hughes Medical Institute, Stanford University, Stanford, CA 94305, USA.
Science (New York, N.Y.)
|April 27, 2013
まとめ
LeathersとOlsonは,猿の側頭内膜 (LIP) 領域のニューロンが,アクション値ではなく,キュー・サライエンスをコードするだけであると結論付けました. この結論は,限られた時間分析と,確立されたLIP生理学を複製できないため,問題があります.
科学分野:
- 神経科学は神経科学である.
- 認知神経科学とは
- 意思決定の神経科学
背景:
- ラテラル・イントラペリエタル (LIP) の皮質領域は,価値に基づく意思決定に関与しています.
- 以前の研究によると,LIPニューロンは,アクション値とキューアライエンスをコードする.
研究 の 目的:
- 意思決定中のLIPニューロン活動に関するLeathers and Olson (2012) による結論を批判的に評価する.
- 元の研究における時間的な範囲と生理学的複製の問題に対処するために.
主な方法:
- 行動タスク中にLIP領域のニューロン応答の分析.
- 観察された生理学的特徴と,LIPで以前に確立された発見の比較.
主要な成果:
- リーザーズとオルソンの主要な結論は,意思決定プロセスの全体ではなく,限られた初期の裁判の時代に基づいていた.
- この研究は,他の研究室によって,後の時間的時代で報告されたLIPニューロンの重要な生理学的特性を複製できませんでした.
結論:
- LIPニューロンが意思決定中のキューアライエンスを独占的にコードするという広範な結論は,完全に支持されていません.
- 時間の分析と複製に関する方法論的限界は,元の研究の発見について懸念を喚起します.
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