Low arousal modulates visuospatial attention in three-dimensional virtual space
| Autor: | Bruno Fimm, Ines Ann Heber, Jakob T. Valvoda, Torsten Kuhlen |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Adult
Male Time Factors Virtual space Arousal Body Temperature Personal Space Low arousal theory Task Performance and Analysis medicine Reaction Time Humans Attention Fatigue General Neuroscience Functional imaging Psychiatry and Mental health Clinical Psychology Sleep deprivation Alertness Affect Covert Space Perception Sleep Deprivation Neurology (clinical) medicine.symptom Depth perception Psychology Photic Stimulation Cognitive psychology |
| Zdroj: | Journal of the International Neuropsychological Society : JINS. 14(2) |
| ISSN: | 1469-7661 |
| Popis: | Clinical, experimental, and functional imaging studies suggest overlapping neuronal networks and functional interactions of alertness and visuospatial attention within the right hemisphere of the brain. To examine the interaction of arousal and visuospatial attention in peripersonal and extrapersonal virtual space, we tested 20 healthy male adults during 24 hr of sleep deprivation at four points during the night (9 p.m., 1 a.m., 5 a.m., and 9 a.m.). The main finding concerning covert orienting in a virtual environment is a highly significant slowing of reorientation toward the left visual hemifield in extrapersonal space due to decreased arousal. The results provide additional evidence for the proposed anatomical and functional overlap of the two attentional systems and indicate a modulation of visuospatial attention by the level of arousal in extrapersonal space. |
| Databáze: | OpenAIRE |
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