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The precision of visual working memory is set by allocation of a shared resource.
These results demonstrate that visual working memory consists of a common resource distributed dynamically across the visual scene, with no need to invoke an upper limit on the number of objects represented.
Dynamic Shifts of Limited Working Memory Resources in Human Vision
It is shown that visual memory capacity is not fixed by the number of objects, but rather is a limited resource that is shared out dynamically between all items in the visual scene, which can be shifted flexibly between objects.
Functional role of the supplementary and pre-supplementary motor areas
The supplementary motor complex consists of the supplementary motor area, the supplementary eye field and the pre-supplementary motor area and theories regarding their function vary widely.
Symmetries in human brain language pathways correlate with verbal recall
- M. Catani, M. Allin, Derek K. Jones
- Psychology, BiologyProceedings of the National Academy of Sciences
- 23 October 2007
It is suggested that the degree of lateralization of perisylvian pathways is heterogeneous in the normal population and, paradoxically, bilateral representation, not extreme lateralization, might ultimately be advantageous for specific cognitive functions.
Changing concepts of working memory
Behavioral and emerging neural evidence for the proposed conceptualization of working memory as a limited resource that is distributed flexibly among all items to be maintained in memory are considered.
The anatomy of visual neglect.
Non-spatially lateralized mechanisms in hemispatial neglect
It is proposed that understanding the interactions between spatially lateralized and non-lateralized mechanisms provides important insights into the neglect syndrome and the normal functions of brain structures that are commonly damaged in neglect patients, and will contribute to the development of treatments for the condition.
Abnormal temporal dynamics of visual attention in spatial neglect patients
The results demonstrate for the first time that visual neglect is a disorder of directing attention in time, as well as space.
Impaired spatial working memory across saccades contributes to abnormal search in parietal neglect.
- M. Husain, S. Mannan, T. Hodgson, E. Wojciulik, J. Driver, C. Kennard
- Psychology, BiologyBrain : a journal of neurology
- 1 May 2001
This work monitored gaze during search, while simultaneously probing whether observers judged they had found a new target, or judged instead that they were re-fixating a previously examined target, suggesting an impairment in retaining searched locations across saccades in parietal neglect.
The hippocampus is required for short‐term topographical memory in humans
The results suggest that the hippocampus supports allocentric topographical processing that is indispensable when appropriately tested after even very short delays, while the presence of the sample scene can allow successful topographical perception without it, possibly via a less flexible parahippocampal representation.