Dissociation of neural correlates of verbal and non-verbal visual working memory with different delays

Abstract

Background: Dorsolateral prefrontal cortex (DLPFC), posterior parietal cortex, and regions in the occipital cortex have been identified as neural sites for visual working memory (WM). The exact involvement of the DLPFC in verbal and non-verbal working memory processes, and how these processes depend on the time-span for retention, remains disputed.

Investigating the relationship between working memory and emotion regulation in mothers

“…This proposal is consistent with the conceptualisation of working memory as a system composed of a visuospatial and a verbal component (Baddeley & Hitch, 1974), with distinct neural correlates (Rothmayr et al, 2007;Smith & Jonides, 1997), that enables the temporary storage and manipulation of information to facilitate goal-directed behaviour (Baddeley, 2003;Baddeley & Hitch, 1974). Assessments of working memory typically involve simple span tasks that require increasing amounts of information, visuospatial or verbal, to be held in working memory.…”

Schizophrenia is associated with a pattern of spatial working memory deficits consistent with cortical disinhibition

“…Furthermore, the absence of a delay effect in the reported meta-analyses is further complicated because most reported studies use different modalities (e.g. verbal rehearsal, colors, shapes), which may involve distinct neural mechanisms and that produce different sensitivities to delay duration (Gold et al, 2010; Lee and Park, 2005; Rothmay et al, 2007). …”

Smartkuber: A Serious Game for Cognitive Health Screening of Elderly Players

“…This may reflect that the Smartkuber tasks test delayed recall through visual memory (e.g., flags, faces, shapes) rather than verbal memory, as in MoCA (using five words), utilizing different and potentially competing cognitive processing centers. 6,36,37 Adding textual elements to the minigames' memory tasks may address the issue and enhance the correlation.…”