Tag: Visual Working Memory

Sensory Cortex Is Nonessential in Working Memory Storage

Published in: Trends in Cognitive Sciences, Volume 22, Issue 3, 192-193 Abstract “Despite the initial supporting evidence and the popularity of the sensory account of visual working memory (VWM) storage, the overwhelming negative evidence presented in my review [1] and a related review [2] show that sensory regions are unlikely to play an essential role in VWM storage. In commentaries, Gayet et al. [3] and Scimeca et al. [4] put forth new arguments in defense of the sensory account of VWM storage. However, the evidence and arguments presented do not provide support for this account or address the negative evidence.” Written by:… Read More

Reaffirming the Sensory Recruitment Account of Working Memory

Published in: Trends in Cognitive Sciences, Volume 22, Issue 3, 190-192 Abstract “The sensory recruitment theory of working memory (WM) proposes that the same cortical regions that contribute to online perceptual processing of a stimulus are recruited to maintain that information in WM [1,2]. In a recent review, Xu reevaluates and rejects sensory accounts of visual WM storage [3]. We clarify here several principles of sensory recruitment theory and describe how the evidence explored in the review – for instance, the role of top-down signals in sustaining sensory cortex representations – actually supports sensory accounts of WM storage.” Written by:… Read More

Visual Working Memory Storage Recruits Sensory Processing Areas

Published in: Trends in Cognitive Sciences, Volume 22, Issue 3, 189-190 Abstract “Human visual processing is subject to a dynamic influx of visual information. Visual working memory (VWM) allows for maintaining relevant visual information available for subsequent behavior. According to the dominating view, VWM recruits sensory processing areas to maintain this visual information online (i.e., the ‘sensory recruitment’ hypothesis). In her recent Trends in Cognitive Sciences article, however, Xu [1] proposes that VWM storage does not rely on (occipital) sensory processing areas, but rather on specialized frontal and parietal areas that are not involved in sensory processing per se [1].”… Read More

Attending globally or locally: Incidental learning of optimal visual attention allocation

Published in: Journal of Experimental Psychology: Learning, Memory, and Cognition, Volume 44, Issue 3, 387-398 Abstract “Attention allocation determines the information that is encoded into memory. Can participants learn to optimally allocate attention based on what types of information are most likely to change? The current study examined whether participants could incidentally learn that changes to either high spatial frequency (HSF) or low spatial frequency (LSF) Gabor patches were more probable and to use this incidentally learned probability information to bias attention during encoding. Participants detected changes in orientation in arrays of 6 Gabor patches: 3 HSF and 3 LSF. For… Read More

Reconstructing the recent visual past: Hierarchical knowledge-based effects in visual working memory

Published in: Psychonomic Bulletin & Review, Volume 24, Issue 6, December 2017, 1889-1899 Abstract “This paper presents two experiments that examine the influence of multiple levels of knowledge on visual working memory (VWM). Experiment 1 focused on memory for faces. Faces were selected from continua that were constructed by morphing two face photographs in 100 steps; half of the continua morphed a famous face into an unfamiliar one, while the other half used two unfamiliar faces. Participants studied six sequentially presented faces each from a different continuum, and at test they had to locate one of these within its continuum. Experiment 2examined immediate memory… Read More