Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun An (often voluntary)
movement of theeye away from a point ofstimulus
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
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Examples
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The authors note their results do not indicate that parietal cortex is solely responsible for antisaccade performance, but instead suggest that it may receive "task set" information from prefrontal cortex.
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There was no clear evidence for any association of the RGS4 variants with cognitive endophenotypes, except for an isolated effect of SNP18 on antisaccade error rate (p = 0.028 for allele-load model).
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Nyffeler et al refer to this remapping process as "visual vector inversion," and showed that this probably occurs within the first 500ms of the antisaccade cue: early disruption of activity in the right posterior parietal cortex (via TMS) will decrease antisaccade performance if that area was representing the initially cued location, whereas later disruption of activity in the same area decreases performance if that area is representing the target location for an antisaccade.
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Their associations with self-rated schizotypy (SPQ), vigilance, verbal, spatial working memory and antisaccade eye performance were tested with regressions in a representative population of 2,243 young male military conscripts.
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Their associations with self-rated schizotypy (SPQ), vigilance, verbal, spatial working memory and antisaccade eye performance were tested with regressions in a representative population of 2,243 young male military conscripts.
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Nyffeler et al refer to this remapping process as "visual vector inversion," and showed that this probably occurs within the first 500ms of the antisaccade cue: early disruption of activity in the right posterior parietal cortex (via TMS) will decrease antisaccade performance if that area was representing the initially cued location, whereas later disruption of activity in the same area decreases performance if that area is representing the target location for an antisaccade.
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The authors note their results do not indicate that parietal cortex is solely responsible for antisaccade performance, but instead suggest that it may receive "task set" information from prefrontal cortex.
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There was no clear evidence for any association of the RGS4 variants with cognitive endophenotypes, except for an isolated effect of SNP18 on antisaccade error rate (p = 0.028 for allele-load model).
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In summary, it appears that "vector inversion" processes engaged by the antisaccade task occur first in the parietal cortex, and prefrontal areas other than the frontal eye fields are more crucial for maintained vigilance or "prior to target onset (perhaps because dlPFC is responsible for information maintenance over long delays).
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In summary, it appears that "vector inversion" processes engaged by the antisaccade task occur first in the parietal cortex, and prefrontal areas other than the frontal eye fields are more crucial for maintained vigilance or "prior to target onset (perhaps because dlPFC is responsible for information maintenance over long delays).
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