Brain areas involved in spatial working memory

Brain areas involved in spatial working memory.

Spatial working memory entails the ability to keep spatial information active in working memory over a short period of time. To study the areas of the brain that are involved in spatial working memory, a group of stroke patients was tested with a spatial search task. Patients and healthy controls were asked to search through a number of boxes shown at different locations on a touch-sensitive co...

Rehearsal Processes in Working Memory and Synchronization of Brain Areas

In this study we investigated brain activity characteristics of rehearsal processes in working memory using analysis of EEG coherence as a measure of synchronization of brain areas. In a delayed serial recall paradigm we enabled subjects to carry out rehearsal in one condition and disrupted it by irrelevant speech in another condition. Results show that rehearsalspecific changes of coherence du...

Nonvisual codes and nonvisual brain areas support visual working memory.

Systems models hold working memory to depend on specialized, domain-specific storage buffers. Here, however, we demonstrate that short-term retention of the identity or location of visually presented stimuli is disrupted by nonvisual secondary tasks performed in the dark-passive listening to nouns or endogenous generation of saccades, respectively. This indicates that the short-term retention o...

Rehearsal in spatial working memory.

This article reports 3 experiments that tested a hypothesis regarding the nature of rehearsal in spatial working memory, one in which discrete shifts of spatial selective attention mediate the maintenance of location-specific representations. Experiment 1 demonstrated increases in visual processing efficiency for locations held in working memory, which suggested that attention was oriented towa...

Visuo-spatial Working Memory