Please use this identifier to cite or link to this item:

Title: Depth of facial expression processing depends on stimulus visibility: Behavioral and electrophysiological evidence of priming effects
Authors: 徐慎謀
Hsu, Shen-Mou;Hetrick, William P;Pessoa, Luiz
Contributors: 心腦學中心
Date: 2008
Issue Date: 2014-05-12 15:07:18 (UTC+8)
Abstract: Participants performed a priming task during which emotional faces served as prime stimuli and emotional words served as targets. Prime-target pairs were congruent or incongruent, and two levels of prime visibility were obtained by varying the duration of the masked primes. To probe a neural signature of the impact of the masked primes, lateralized readiness potentials (LRPs) were recorded over motor cortex. In the high-visibility condition, responses to word targets were faster when the prime-target pairs were congruent than when they were incongruent, providing evidence of priming effects. In line with the behavioral results, the electrophysiological data showed that high-visibility face primes resulted in LRP differences between congruent and incongruent trials, suggesting that prime stimuli initiated motor preparation. Contrary to the above pattern, no evidence for reaction time or LRP differences was observed in the low-visibility condition, revealing that the depth of facial expression processing is dependent on stimulus visibility.
Relation: Cognitive, Affective, & Behavioral Neuroscience, 8, 282-292
Data Type: article
DOI 連結:
Appears in Collections:[心智‧大腦與學習研究中心 ] 期刊論文

Files in This Item:

File Description SizeFormat
282292.pdf464KbAdobe PDF1232View/Open

All items in 學術集成 are protected by copyright, with all rights reserved.

社群 sharing