RRC ID 33298
著者 Watanabe K, Funahashi S.
タイトル A dual-task paradigm for behavioral and neurobiological studies in nonhuman primates.
ジャーナル J Neurosci Methods
Abstract BACKGROUND:The dual-task paradigm is a procedure in which subjects are asked to perform two behavioral tasks concurrently, each of which involves a distinct goal with a unique stimulus-response association. Due to the heavy demand on subject's cognitive abilities, human studies using this paradigm have provided detailed insights regarding how the components of cognitive systems are functionally organized and implemented. Although dual-task paradigms are widely used in human studies, they are seldom used in nonhuman animal studies.
NEW METHOD:We propose a novel dual-task paradigm for monkeys that requires the simultaneous performance of two cognitively demanding component tasks, each of which uses an independent effector for behavioral responses (hand and eyes). We provide a detailed description of an optimal training protocol for this paradigm, which has been lacking in the existing literature.
RESULTS:An analysis of behavioral performance showed that the proposed dual-task paradigm (1) was quickly learned by monkeys (less than 40 sessions) with step-by-step training protocols, (2) produced specific behavioral effects, known as dual-task interference in human studies, and (3) achieved rigid and independent control of the effectors for behavioral responses throughout the trial.
COMPARISON WITH EXISTING METHODS:The proposed dual-task paradigm has a scalable task structure, in that each of the two component tasks can be easily replaced by other tasks, while preserving the overall structure of the paradigm.
CONCLUSIONS:This paradigm should be useful for investigating executive control that underlies dual-task performance at both the behavioral and neuronal levels.
巻・号 246
ページ 1-12
公開日 2015-5-15
DOI 10.1016/j.jneumeth.2015.03.006
PII S0165-0270(15)00088-6
PMID 25769271
MeSH Analysis of Variance Animals Attention / physiology* Conditioning, Operant Cues Eye Movements Female Macaca fascicularis / physiology Male Memory / physiology* Photic Stimulation Psychomotor Performance / physiology* Reaction Time / physiology*
IF 2.214
引用数 7
WOS 分野 BIOCHEMICAL RESEARCH METHODS NEUROSCIENCES
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