Integration of facial features under memory load

Show full item record



Permalink

http://hdl.handle.net/10138/304995

Citation

Ölander , K , Muukkonen , I , Saarela , T P & Salmela , V R 2019 , ' Integration of facial features under memory load ' , Scientific Reports , vol. 9 , 892 . https://doi.org/10.1038/s41598-018-37596-2

Title: Integration of facial features under memory load
Author: Ölander, K.; Muukkonen, I.; Saarela, T. P.; Salmela, V. R.
Contributor: University of Helsinki, Department of Psychology and Logopedics
University of Helsinki, Department of Psychology and Logopedics
University of Helsinki, Department of Psychology and Logopedics
University of Helsinki, Department of Psychology and Logopedics
Date: 2019-01-29
Language: eng
Number of pages: 10
Belongs to series: Scientific Reports
ISSN: 2045-2322
URI: http://hdl.handle.net/10138/304995
Abstract: Simple visual items and complex real-world objects are stored into visual working memory as a collection of independent features, not as whole or integrated objects. Storing faces into memory might differ, however, since previous studies have reported perceptual and memory advantage for whole faces compared to other objects. We investigated whether facial features can be integrated in a statistically optimal fashion and whether memory maintenance disrupts this integration. The observers adjusted a probe - either a whole face or isolated features (eyes or mouth region) - to match the identity of a target while viewing both stimuli simultaneously or after a 1.5 second retention period. Precision was better for the whole face compared to the isolated features. Perceptual precision was higher than memory precision, as expected, and memory precision further declined as the number of memorized items was increased from one to four. Interestingly, the whole-face precision was better predicted by models assuming injection of memory noise followed by integration of features than by models assuming integration of features followed by the memory noise. The results suggest equally weighted or optimal integration of facial features and indicate that feature information is preserved in visual working memory while remembering faces.
Subject: ACCOUNTS
BINDING
CAPACITY
FACE
NO
PERCEPTION
PRECISION
SHORT-TERM-MEMORY
SUM
WORKING-MEMORY
515 Psychology
Rights:


Files in this item

Total number of downloads: Loading...

Files Size Format View
s41598_018_37596_2.pdf 1.234Mb PDF View/Open

This item appears in the following Collection(s)

Show full item record