TY  - JOUR
PY  - 2015//
TI  - Selective and divided attention modulates auditory-vocal integration in the processing of pitch feedback errors
JO  - European journal of neuroscience
A1  - Liu, Yunbo
A1  - Hu, Huijing
A1  - Jones, Jeffery A.
A1  - Guo, Zhiqiang
A1  - Li, Weifeng
A1  - Chen, Xi
A1  - Liu, Peng
A1  - Liu, Hanjun
SP  - 1895
EP  - 1904
VL  - 42
IS  - 3
N2  - Speakers rapidly adjust their ongoing vocal productions to compensate for errors they hear in their auditory feedback. It is currently unclear what role attention plays in these vocal compensations. This event-related potential (ERP) study examined the influence of selective and divided attention on the vocal and cortical responses to pitch errors heard in auditory feedback regarding ongoing vocalizations. During the production of a sustained vowel, participants briefly heard their vocal pitch shifted up 2 semitones while they actively attended to auditory or visual events (selective attention), or both auditory and visual events (divided attention), or were not told to attend to either modality (control condition). The behavioral results showed that attending to the pitch perturbations elicited larger vocal compensations than attending to the visual stimuli. Moreover, ERPs were likewise sensitive to the attentional manipulations: P2 responses to pitch perturbations were larger when participants attended to the auditory stimuli compared to when they attended to the visual stimuli, and compared to when they were not explicitly told to attend to either the visual or auditory stimuli. By contrast, dividing attention between the auditory and visual modalities caused suppressed P2 responses relative to all the other conditions, and enhanced N1 responses relative to the control condition. These findings provide strong evidence for the influence of attention on the mechanisms underlying the auditory-vocal integration in the processing of pitch feedback errors. As well, selective attention and divided attention appear to modulate the neurobehavioral processing of pitch feedback errors in different ways. This article is protected by copyright. All rights reserved.<p />  <p>Language: en</p>
LA  - en
SN  - 0953-816X
UR  - http://dx.doi.org/10.1111/ejn.12949
ID  - ref1
ER  -