A biophysical neural accumulator model of decision making in an antisaccade task
- 作者：Vassilis Cutsuridis ; Ioannis Kahramanoglou ; Nikolaos Smyrnis ; Ioannis Evdokimidis ; Stavros Perantonis
- 关键词：Climbing activity ; Antisaccade ; Decision making ; Superior colliculus ; Computational model
- 刊名：Neurocomputing
- 出版年：2007
- 期刊代码：95_09252312
- 类别：cp
- 出版时间：March 2007
- 卷：70
- 期：7-9
- 页码：1390-1402
- 文件大小：701 K
摘要
A biophysical cortico-colicular model of saccade initiation based on competitive integration of planned and reactive cortical saccade decision signals in the intermediate layer of the superior colliculus is introduced. The variable slopes of the climbing activities of the input cortical decision signals are produced from variability in the ionic and synaptic conductances of cortical neurons. The model reproduces the unimodal distributions of saccade reaction times for correct antisaccades and erroneous prosaccades as well as the variability of saccade reaction times and the overall error probabilities in a large sample of 2006 young men performing an antisaccade task.