A neural network model of inhibitory processes in subliminal priming

被引:52
作者
Bowman, H [1 ]
Schlaghecken, F
Eimer, M
机构
[1] Univ Kent, Comp Lab, Canterbury CT2 7NF, Kent, England
[2] Univ Warwick, Dept Psychol, Coventry CV4 7AL, W Midlands, England
[3] Univ London Birkbeck Coll, Dept Expt Psychol, London, England
关键词
D O I
10.1080/13506280444000823
中图分类号
B84 [心理学];
学科分类号
04 [教育学]; 0402 [心理学];
摘要
Masked priming experiments have revealed a precise set of facilitatory and inhibitory visuomotor control processes. Most notably, inhibitory effects have been identified in which prime-target compatibility induces performance costs and prime-target in compatibility induces performance benefits. We argue that this profile of data is commensurate with an "emergency braking mechanism", whereby responses can be retracted as a result of changing sensory evidence. The main contribution of this paper is to provide a neural network-based explanation of this phenomenon. This is obtained through the use of feed forward inhibition to implement backward masking, lateral inhibition to implement response competition, and opponent processing mechanisms to implement response retraction. Although the model remains simple, it does a very good job of reproducing the available masked priming data. For example, it reproduces a large spectrum of reaction time data across a number of different experimental conditions. Perhaps most notably, however, it also reproduces lateralized readiness potentials that have been recorded while subjects perform different conditions. In addition, it provides a concrete set of testable predictions.
引用
收藏
页码:401 / 480
页数:80
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