Redundancy Gain For Categorical Targets Depends On Display Configuration And Duration

Keywords

categorization; display configuration; display duration; Redundancy gain; redundant signals effect

Abstract

Redundancy gain is an improvement in speeded target detection when the number of targets associated with a single response is increased within a single display. The effect has been clearly demonstrated with specific targets, but it is not clear if it occurs in categorization tasks with non-identical targets. The current study tested the effect of target redundancy on speed and accuracy in a go/no-go categorization task. Targets were digits tilted 45° to the left, and were displayed in unilateral, bilateral, or central displays for either 1500 ms or 100 ms. Redundancy gain only occurred for brief targets displayed bilaterally in the upper visual field. The results indicate that redundancy gain is possible for categorization tasks with some bilateral configurations, supporting a role for interhemispheric processing in redundancy gain. Additionally, the results may indicate that processing strategies mask redundancy gain when participants can view targets for a long period of time.

Publication Date

7-3-2018

Publication Title

Visual Cognition

Volume

26

Issue

6

Number of Pages

393-404

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1080/13506285.2018.1470587

Socpus ID

85047109483 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85047109483

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