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Effects of attentional filtering demands on preparatory ERPs elicited in a spatial cueing task

Seiss, E, Driver, J and Eimer, M (2009) Effects of attentional filtering demands on preparatory ERPs elicited in a spatial cueing task Clinical Neurophysiology, 120 (6). pp. 1087-1095.

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Abstract

Objective: We used ERP measures to investigate how attentional filtering requirements affect preparatory attentional control and spatially selective visual processing. Methods: In a spatial cueing experiment, attentional filtering demands were manipulated by presenting task-relevant visual stimuli either in isolation (target-only task) or together with irrelevant adjacent distractors (target-plus-distractors task). ERPs were recorded in response to informative spatial precues, and in response to subsequent visual stimuli at attended and unattended locations. Results: The preparatory ADAN component elicited during the cue-target interval was larger and more sustained in the target-plus-distractors task, reflecting the demand of stronger attentional filtering. By contrast, two other preparatory lateralised components (EDAN and LDAP) were unaffected by the attentional filtering demand. Similar enhancements of P1 and N1 components in response to the lateral imperative visual stimuli were observed at cued versus uncued locations, regardless of filtering demand, whereas later attentional-related negativities beyond 200 ms post-stimulus were larger the targetplus- distractor task. Conclusions: Our results implicate that the ADAN component is linked to preparatory top-down control processes involved in the attentional filtering of irrelevant distractors; such filtering also affects later attention-related negativities recorded after the onset of the imperative stimulus. Significance: ERPs can reveal effects of expected attentional filtering of irrelevant distractors on preparatory attentional control processes and spatially selective visual processing.

Item Type: Article
Divisions : Faculty of Arts and Social Sciences
Authors :
NameEmailORCID
Seiss, EUNSPECIFIEDUNSPECIFIED
Driver, JUNSPECIFIEDUNSPECIFIED
Eimer, MUNSPECIFIEDUNSPECIFIED
Date : June 2009
Identification Number : 10.1016/j.clinph.2009.03.016
Uncontrolled Keywords : Attention, Spatial, ERPs, Vision, Cognitive control, MANUAL RESPONSE PREPARATION, SELECTIVE ATTENTION, VISUOSPATIAL ATTENTION, SENSORY MODULATIONS, SHIFTS, COMPONENTS, BRAIN, DISTRACTOR, POTENTIALS, SPACE
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 28 Mar 2017 14:08
Last Modified : 31 Oct 2017 14:40
URI: http://epubs.surrey.ac.uk/id/eprint/713067

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