Right prefrontal cortex specialization for visuospatial working memory and developmental alterations in prefrontal cortex recruitment in school-age children

Working memory (WM) is a system for maintaining and manipulating information (Baddeley et al., 1974), which has a subsystem that specifically processes visuospatial information (i.e., visuospatial WM: VSWM). Cornoldi et al. (2004) have proposed a continuity model of WM assuming the existence of two dimensions: a horizontal continuum comprising different content types (e.g., verbal or visuospatial information) and a vertical continuum distinguishing between passive storage and active processing. Passive storage is the retention of information that is not modified after encoding, whereas active processing is associated with integration, transformation, modification, and/or manipulation of stored information (Cornoldi et al., 2000; Cornoldi et al., 2004).

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