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Is fast auditory change detection feature specific? An electrophysiological study in humans
Author(s) -
Leung Sumie,
Cornella Miriam,
Grimm Sabine,
Escera Carles
Publication year - 2012
Publication title -
psychophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.661
H-Index - 156
eISSN - 1469-8986
pISSN - 0048-5772
DOI - 10.1111/j.1469-8986.2012.01375.x
Subject(s) - mismatch negativity , psychology , stimulus (psychology) , oddball paradigm , p3a , event related potential , audiology , electroencephalography , electrophysiology , communication , cognitive psychology , neuroscience , medicine
Recent oddball studies showed that auditory change detection responses exist in the first 50 ms after sound onset, upstream of mismatch negativity ( MMN ). We examined if these early responses could be elicited by feature‐specific changes, meaning changes in the value of one attribute of a stimulus, regardless of whether other attributes of the stimulus are changing or not. We used a multifeature paradigm with four types of deviants: frequency, duration, intensity, and interaural time difference. In the middle latency range, only frequency deviants led to an enhanced Nb response. All four feature changes generated significant MMNs . Our results indicate that human brain is capable of detecting a feature‐specific change for frequency attributes in the middle latency. The different levels of information being encoded in two separate event‐related potential time ranges support the notion of a hierarchical organization of auditory deviance detection.