Tomalski Przemyslaw, Johnson Mark H, Csibra Gergely
Centre for Brain and Cognitive Development, University of London, UK.
Neuroreport. 2009 Oct 7;20(15):1309-12. doi: 10.1097/WNR.0b013e32832f0acd.
Recent work suggests that a subcortical visual route may mediate rapid orienting towards faces in the visual periphery. We now demonstrate that this orienting bias towards faces shows a temporal-nasal visual field asymmetry of responses, supporting the view that it is mediated by extrageniculate pathways. Upright schematic face-like pattern elicited faster behavioural responses than inverted one in the temporal but not in the nasal hemifield of each eye. This effect occurred for saccades but not for manual responses. The presence of a similar asymmetry of the orienting bias in newborns supports the role of extrageniculate pathways in face detection in both neonates and adults.
近期研究表明，一条皮层下视觉通路可能介导了对视觉外周面部的快速定向。我们现在证明，这种对面部的定向偏差表现出反应的颞侧-鼻侧视野不对称，支持了其由膝状体外通路介导的观点。在每只眼睛的颞侧半视野而非鼻侧半视野中，直立的 schematic 面部样图案比倒置图案引发更快的行为反应。这种效应出现在眼跳中而非手动反应中。新生儿中存在类似的定向偏差不对称，支持了膝状体外通路在新生儿和成年人面部检测中的作用。
