Perceptual asymmetries are preserved in short-term memory tasks.

Attention, Perception & Psychophysics
Leila Montaser-Kouhsari, Marisa Carrasco

Abstract

Visual performance is heterogeneous at isoeccentric locations; it is better on the horizontal than on the vertical meridian and worse at the upper than at the lower region of the vertical meridian (Carrasco, Talgar, & Cameron, 2001; Talgar & Carrasco, 2002). It is unknown whether these performance inhomogeneities are also present in spatial frequency tasks and whether asymmetries present during encoding of visual information also emerge in visual short-term memory (VSTM) tasks. Here, we investigated the similarity of the perceptual and VSTM tasks in spatial frequency discrimination (Experiments 1 and 2) and perceived spatial frequency (Experiments 3 and 4). We found that (1) performance in both simultaneous (perceptual) and delayed (VSTM) spatial frequency discrimination tasks varies as a function of location; it is better along the horizontal than along the vertical meridian; and (2) perceived spatial frequency in both tasks is higher along the horizontal than along the vertical meridian. These results suggest that perceived spatial frequency may mediate performance differences in VSTM tasks across the visual field, implying that the quality with which we encode information affects VSTM.

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Citations

Sep 21, 2011·PloS One·Jennifer E Corbett, Marisa Carrasco
Feb 22, 2012·PloS One·Karin S PilzAllison B Sekuler
Jul 10, 2014·Attention, Perception & Psychophysics·Mónica Muiños, Soledad Ballesteros
Mar 25, 2014·Attention, Perception & Psychophysics·A Emin Orhan, Robert A Jacobs
May 10, 2011·Vision Research·Marisa Carrasco
Sep 29, 2020·Journal of Vision·Marc M HimmelbergMarisa Carrasco
May 28, 2019·PLoS Computational Biology·Eline R KupersJonathan Winawer
Jan 5, 2021·Journal of Vision·Antoine BarbotMarisa Carrasco
May 27, 2021·Attention, Perception & Psychophysics·Simran PurokayasthaMarisa Carrasco
Jan 11, 2022·PLoS Computational Biology·Eline R KupersJonathan Winawer

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