Feature-specific encoding flexibility in visual working memory.

The current study examined selective encoding in visual working memory by systematically investigating interference from task-irrelevant features. The stimuli were objects defined by three features (color, shape, and location), and during a delay period, any of the features could switch between two...

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Main Authors: Aki Kondo, Jun Saiki
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2012-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC3532116?pdf=render
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author Aki Kondo
Jun Saiki
author_facet Aki Kondo
Jun Saiki
author_sort Aki Kondo
collection DOAJ
description The current study examined selective encoding in visual working memory by systematically investigating interference from task-irrelevant features. The stimuli were objects defined by three features (color, shape, and location), and during a delay period, any of the features could switch between two objects. Additionally, single- and whole-probe trials were randomized within experimental blocks to investigate effects of memory retrieval. A series of relevant-feature switch detection tasks, where one feature was task-irrelevant, showed that interference from the task-irrelevant feature was only observed in the color-shape task, suggesting that color and shape information could be successfully filtered out, but location information could not, even when location was a task-irrelevant feature. Therefore, although location information is added to object representations independent of task demands in a relatively automatic manner, other features (e.g., color, shape) can be flexibly added to object representations.
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spelling doaj.art-4f41e25bb88c477da260569bdb8d9f3a2022-12-22T01:30:39ZengPublic Library of Science (PLoS)PLoS ONE1932-62032012-01-01712e5096210.1371/journal.pone.0050962Feature-specific encoding flexibility in visual working memory.Aki KondoJun SaikiThe current study examined selective encoding in visual working memory by systematically investigating interference from task-irrelevant features. The stimuli were objects defined by three features (color, shape, and location), and during a delay period, any of the features could switch between two objects. Additionally, single- and whole-probe trials were randomized within experimental blocks to investigate effects of memory retrieval. A series of relevant-feature switch detection tasks, where one feature was task-irrelevant, showed that interference from the task-irrelevant feature was only observed in the color-shape task, suggesting that color and shape information could be successfully filtered out, but location information could not, even when location was a task-irrelevant feature. Therefore, although location information is added to object representations independent of task demands in a relatively automatic manner, other features (e.g., color, shape) can be flexibly added to object representations.http://europepmc.org/articles/PMC3532116?pdf=render
spellingShingle Aki Kondo
Jun Saiki
Feature-specific encoding flexibility in visual working memory.
PLoS ONE
title Feature-specific encoding flexibility in visual working memory.
title_full Feature-specific encoding flexibility in visual working memory.
title_fullStr Feature-specific encoding flexibility in visual working memory.
title_full_unstemmed Feature-specific encoding flexibility in visual working memory.
title_short Feature-specific encoding flexibility in visual working memory.
title_sort feature specific encoding flexibility in visual working memory
url http://europepmc.org/articles/PMC3532116?pdf=render
work_keys_str_mv AT akikondo featurespecificencodingflexibilityinvisualworkingmemory
AT junsaiki featurespecificencodingflexibilityinvisualworkingmemory