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Visual hemispatial inattention: stimulus parameters and exploratory strategies.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Weintraub, Sandra Mesulam, M. -Marsel |
| Copyright Year | 1988 |
| Abstract | Patients with unilateral hemispheric lesions were given visual target cancellation tasks. As expected, marked contralateral and less severe ipsilateral visual inattention were observed in patients with right-sided cerebral lesions whereas those with left-sided lesions showed only mild contralateral neglect. Stimulus material (shapes vs letters) and array (random vs structured) interacted in a complex manner to influence target detection only in patients with right-sided lesions. Furthermore, the search strategy of these patients tended to be erratic, particularly when the stimuli were in an unstructured array. A structured array prompted a more systematic and efficient search. It appears, therefore, that stimulus content and spatial array affect neglect behaviour in patients with right-sided lesions and that a lack of systematic visual exploration within the extrapersonal space is one factor that contributes to visual hemispatial inattention. |
| Starting Page | 99 |
| Ending Page | 105 |
| Page Count | 7 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://jnnp.bmj.com/content/jnnp/51/12/1481.full.pdf |
| PubMed reference number | 3221214v1 |
| Volume Number | 51 |
| Issue Number | 12 |
| Journal | Journal of neurology, neurosurgery, and psychiatry |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Area striata structure Elder Abuse Optic Nerve Glioma, Childhood Patients |
| Content Type | Text |
| Resource Type | Article |
