Timing in predictive coding: the roles of task relevance and global probability

Sherwell, Chase S., Garrido, Marta I. and Cunnington, Ross (2017) Timing in predictive coding: the roles of task relevance and global probability. Journal of Cognitive Neuroscience, 29 5: 780-792. doi:10.1162/jocn_a_01085

Author Sherwell, Chase S.
Garrido, Marta I.
Cunnington, Ross
Title Timing in predictive coding: the roles of task relevance and global probability
Journal name Journal of Cognitive Neuroscience   Check publisher's open access policy
ISSN 1530-8898
Publication date 2017-05-01
Year available 2017
Sub-type Article (original research)
DOI 10.1162/jocn_a_01085
Open Access Status Not yet assessed
Volume 29
Issue 5
Start page 780
End page 792
Total pages 13
Place of publication Cambridge, MA United States
Publisher MIT Press
Language eng
Subject 2805 Cognitive Neuroscience
Abstract Predictive coding models of attention propose that attention and prediction operate synergistically to optimize perception, as reflected in interactive effects on early sensory neural responses. It is yet unclear whether attention and prediction based on the temporal attributes of expected events operate in a similar fashion. We investigated how attention and prediction based on timing interact by manipulating the task relevance and a priori probability of auditory stimulus onset timing within a go/no-go task while recording EEG. Preparatory activity, as indexed via the contingent negative variation, reflected temporally specific anticipation as a function of both attention and prediction. Higher stimulus probability led to significant predictive N1 suppression; however, we failed to find an effect of task relevance on N1 amplitude and an interaction of task relevance with prediction. We suggest the predictability of sensory timing is the predominant influence on early sensory responses where a priori probabilities allow for strong prior beliefs. When this is the case, we find that the effects of temporal prediction on early sensory responses are independent of the task relevance of sensory stimuli. Our findings contribute to the expansion of predictive coding frameworks to include the role of timing in sensory processing.
Q-Index Code C1
Q-Index Status Provisional Code
Grant ID 2016000071
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: HERDC Pre-Audit
Queensland Brain Institute Publications
School of Psychology Publications
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