Electrophysiological evidence of low salience distractor interference during visual search
Abstract
Visual search displays often include distractors of lesser salience in addition to a target and one or more salient distractors. We investigated low salience distractor effects on the N2pc, an ERP component indexing the deployment of attention, and the Ptc, a component purported to reflect attentional disengagement. We hypothesized that salient distractors pull the attentional focus away from the target, which could lead to increased attentional processing of low salience distractors close to the target and salient distractor. Participants looked for a colored inverted T during a visual search task while ignoring ...
Source: Psychophysiology - February 1, 2018 Category: Neurology Authors: Ulysse Fortier ‐Gauthier, Pierre Jolicœur Tags: ORIGINAL ARTICLE Source Type: research
If or when? Uncertainty's role in anxious anticipation
Abstract
Uncertainty is often associated with subjective distress and a potentiated anxiety response. Occurrence uncertainty, or the inability to predict if a threat will occur, has rarely been compared experimentally with temporal uncertainty, or the inability to predict when a threat will occur. The current study aimed to (a) directly compare the anxiogenic effects of anticipating these two types of uncertain threat, as indexed by the eyeblink startle response, and (b) assess the relationship between startle response to occurrence and temporal uncertainty and individual differences in self‐reported intolerance of uncer...
Source: Psychophysiology - January 31, 2018 Category: Neurology Authors: Ken P. Bennett, Jacqueline S. Dickmann, Christine L. Larson Tags: ORIGINAL ARTICLE Source Type: research
If or when? Uncertainty's role in anxious anticipation
Psychophysiology, EarlyView. (Source: Psychophysiology)
Source: Psychophysiology - January 31, 2018 Category: Neurology Authors: Ken P.Bennett
,
Jacqueline S.Dickmann
,
Christine L.Larson Source Type: research
ERP components and behavior in the auditory equiprobable go/no ‐go task: Inhibition in young adults
Psychophysiology, EarlyView. (Source: Psychophysiology)
Source: Psychophysiology - January 31, 2018 Category: Neurology Authors: Jack S.Fogarty
,
Robert J.Barry
,
Frances M.De Blasio
,
Genevieve Z.Steiner Source Type: research
If or when? Uncertainty's role in anxious anticipation
Psychophysiology, EarlyView. (Source: Psychophysiology)
Source: Psychophysiology - January 31, 2018 Category: Neurology Source Type: research
ERP components and behavior in the auditory equiprobable go/no ‐go task: Inhibition in young adults
Psychophysiology, EarlyView. (Source: Psychophysiology)
Source: Psychophysiology - January 31, 2018 Category: Neurology Source Type: research
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Psychophysiology, Ahead of Print. (Source: Psychophysiology)
Source: Psychophysiology - January 31, 2018 Category: Neurology Source Type: research
ERP components and behavior in the auditory equiprobable go/no ‐go task: Inhibition in young adults
Abstract
Previous research suggests that young adults do not need active and effortful inhibition to successfully complete the auditory equiprobable go/no‐go task, a view that was incorporated into Barry and De Blasio's sequential processing schema for this task. However, recent evidence in children suggests that view could be incorrect. The present research aims to clarify the functionality of the N2 and P3 subcomponents within the proposed schema, assessing the role of inhibition in this task. To optimize the quantification of the N2 and P3 subcomponents, separate temporal PCAs were applied to the go/no‐go ERP data f...
Source: Psychophysiology - January 31, 2018 Category: Neurology Authors: Jack S. Fogarty, Robert J. Barry, Frances M. De Blasio, Genevieve Z. Steiner Tags: ORIGINAL ARTICLE Source Type: research
The detection of higher ‐order acoustic transitions is reflected in the N1 ERP
Abstract
The auditory system features various types of dedicated change detectors enabling the rapid parsing of auditory stimulation into distinct events. The activity of such detectors is reflected by the N1 ERP. Interestingly, certain acoustic transitions show an asymmetric N1 elicitation pattern: whereas first‐order transitions (e.g., a change from a segment of constant frequency to a frequency glide [c‐to‐g change]) elicit N1, higher‐order transitions (e.g., glide‐to‐constant [g‐to‐c] changes) do not. Consensus attributes this asymmetry to the absence of any available sensory mechanism that is able to r...
Source: Psychophysiology - January 30, 2018 Category: Neurology Authors: Annekathrin Weise, Erich Schr öger, János Horváth Tags: ORIGINAL ARTICLE Source Type: research
The detection of higher ‐order acoustic transitions is reflected in the N1 ERP
Psychophysiology, EarlyView. (Source: Psychophysiology)
Source: Psychophysiology - January 30, 2018 Category: Neurology Authors: AnnekathrinWeise
,
ErichSchr öger
,
JánosHorváth Source Type: research
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Psychophysiology, Ahead of Print. (Source: Psychophysiology)
Source: Psychophysiology - January 30, 2018 Category: Neurology Source Type: research
Toward a reliable, automated method of individual alpha frequency (IAF) quantification
Abstract
Individual alpha frequency (IAF) is a promising electrophysiological marker of interindividual differences in cognitive function. IAF has been linked with trait‐like differences in information processing and general intelligence, and provides an empirical basis for the definition of individualized frequency bands. Despite its widespread application, however, there is little consensus on the optimal method for estimating IAF, and many common approaches are prone to bias and inconsistency. Here, we describe an automated strategy for deriving two of the most prevalent IAF estimators in the literature: peak alpha fr...
Source: Psychophysiology - January 22, 2018 Category: Neurology Authors: Andrew W. Corcoran, Phillip M. Alday, Matthias Schlesewsky, Ina Bornkessel ‐Schlesewsky Tags: ORIGINAL ARTICLE Source Type: research
Toward a reliable, automated method of individual alpha frequency (IAF) quantification
Psychophysiology, EarlyView. (Source: Psychophysiology)
Source: Psychophysiology - January 21, 2018 Category: Neurology Authors: Andrew W.Corcoran
,
Phillip M.Alday
,
MatthiasSchlesewsky
,
InaBornkessel ‐Schlesewsky Source Type: research
