title: When rapid adaptation paradigm is not too rapid: Evidence of face-sensitive N170 adaptation effects.
abstract: Recent findings have demonstrated that N170 adaptation effects evoked by face adaptors are general to face and non-face tests, implicating adaptor-locked interferences in the rapid adaptation paradigm. Here we examined the extent to which adaptor-locked interferences confound N170 adaptation effects in different experimental parameters by manipulating the stimulus onset asynchrony (SOA) duration and jitter between adaptors and tests. In the short SOA, those interferences were well visible for the grand-average ERP waveforms evoked by tests, and they are likely to render rapid adaptation paradigm with short SOA unreliable. The adaptor-locked interferences were attenuated by appropriately increasing SOA duration, such that face-sensitive adaptation effects were evident in the long SOA for both baseline-to-peak and peak-to-peak N170 measurements. These findings suggest that the rapid adaptation paradigm may work with a relative long SOA. Our findings provide useful information for future studies regarding the choosing of appropriate experimental parameters and measurements for the rapid adaptation paradigm. In addition, future studies are needed to investigate how to objectively subtract the overlaps of adaptors from tests and to validate the N170 adaptation effect with appropriate behavioral performance.
authors.affiliation: National Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Beijing 100875, China.
authors.forename: Tengxiang
authors.initials: T
authors.lastname: Tian
authors.affiliation: National Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Beijing 100875, China.
authors.forename: Xue
authors.initials: X
authors.lastname: Feng
authors.affiliation: National Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Beijing 100875, China. Electronic address: chunliang.feng@gmail.com.
authors.forename: Chunliang
authors.initials: C
authors.lastname: Feng
authors.affiliation: Key Laboratory of Behavioral Science, Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, China.
authors.forename: Ruolei
authors.initials: R
authors.lastname: Gu
authors.affiliation: Institute of Affective and Social Neuroscience, Shenzhen University, Shenzhen 518060, China; Sichuan Research Center of Applied Psychology, Chengdu Medical College, Chengdu, China.
authors.forename: Yue-Jia
authors.initials: YJ
authors.lastname: Luo
mesh_terms: D000223:Adaptation, Psychological / Q000502:physiology*; D000293:Adolescent; D000328:Adult; D004569:Electroencephalography; D005071:Evoked Potentials / Q000502:physiology*; D000066499:Facial Recognition / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D010775:Photic Stimulation; D011897:Random Allocation; D055815:Young Adult
keywords: Face; N170; Rapid adaptation paradigm; Stimulus onset asynchrony (SOA)