AQUILI Luca    所属   立命館アジア太平洋大学  国際経営学部    職種   准教授
言語種別	英語
発行・発表の年月	2020
形態種別	学術論文
査読	査読あり
標題	Tyrosine negatively affects flexible-like behaviour under cognitively demanding conditions
執筆形態	コレスポンディング
掲載誌名	JOURNAL OF AFFECTIVE DISORDERS
掲載区分	国外
巻・号・頁	260,pp.329-333
国際共著	国際共著
著者・共著者	Robson Anna, Lim Lee Wei, Aquili Luca
概要	This study examined whether tyrosine supplementation improves behavioral flexibility when cognitive demands are high. Healthy adults received tyrosine or placebo and completed a flexibility task under demanding conditions. Contrary to the expectation that a dopamine precursor would enhance executive control, tyrosine impaired flexible responding when cognitive load was greatest. The results support an inverted-U account of catecholamine function: raising precursor availability may be beneficial only when baseline demand or dopamine tone is low, while producing poorer performance when the cognitive system is already strongly engaged.
DOI	10.1016/j.jad.2019.09.031
ISSN	0165-0327