Abstract:
:Building on the work of Ralph Miller and coworkers (Miller and Matzel, 1988; Denniston et al., 2001; Stout and Miller, 2007), I propose a new formalization of the comparator hypothesis that seeks to overcome some shortcomings of existing formalizations. The new model, dubbed ecco for "Error-Correcting COmparisons," retains the comparator process and the learning of CS-CS associations based on contingency. ecco assumes, however, that learning of CS-US associations is driven by total error correction, as first introduced by Rescorla and Wagner (1972). I explore ecco's behavior in acquisition, compound conditioning, blocking, backward blocking, and unovershadowing. In these paradigms, ecco appears capable of avoiding the problems of current comparator models, such as the inability to solve some discriminations and some paradoxical effects of stimulus salience. At the same time, ecco exhibits the retrospective revaluation phenomena that are characteristic of comparator theory.
journal_name
Behav Processesjournal_title
Behavioural processesauthors
Ghirlanda Sdoi
10.1016/j.beproc.2018.03.009subject
Has Abstractpub_date
2018-09-01 00:00:00pages
36-44eissn
0376-6357issn
1872-8308pii
S0376-6357(17)30419-9journal_volume
154pub_type
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