An extension of the Rescorla and Wagner Simulator for context conditioning

作者：Mondragon Esther^*; Alonso Eduardo; Fernandez Alberto; Gray Jonathan

来源：Computer Methods and Programs in Biomedicine, 2013, 110(2): 226-230.

DOI：10.1016/j.cmpb.2013.01.016

• Rescorla and Wagner model
• Error prediction learning
• Context conditioning
• Compound stimuli
• Configural cues
• Open-source simulator

This paper introduces R%26W Simulator version 4, which extends previous work by incorporating context simulation within standard Pavlovian designs. This addition allows the assessment of: (1) context-stimulus competition, by treating contextual cues as ordinary background stimuli present throughout the whole experimental session; (2) summation, by computing compound stimuli with contextual cues as an integrating feature, with and without the addition of specific configural cues; and (3) contingency effects in causal learning. These new functionalities broaden the range of experimental designs that the simulator is able to replicate, such as some recovery from extinction phenomena (e.g., renewal effects). In addition, the new version permits specifying probe trials among standard trials and extracting their values.

• 出版日期2013-5