Memory & Cognition

, Volume 46, Issue 2, pp 261–273 | Cite as

One-back reinforcement dissociates implicit-procedural and explicit-declarative category learning

  • J. David Smith
  • Sonia Jamani
  • Joseph Boomer
  • Barbara A. Church
Article
  • 68 Downloads

Abstract

The debate over unitary/multiple category-learning utilities is reminiscent of debates about multiple memory systems and unitary/dual codes in knowledge representation. In categorization, researchers continue to seek paradigms to dissociate explicit learning processes (yielding verbalizable rules) from implicit learning processes (yielding stimulus–response associations that remain outside awareness). We introduce a new dissociation here. Participants learned matched category tasks with a multidimensional, information-integration solution or a one-dimensional, rule-based solution. They received reinforcement immediately (0-Back reinforcement) or after one intervening trial (1-Back reinforcement). Lagged reinforcement eliminated implicit, information-integration category learning but preserved explicit, rule-based learning. Moreover, information-integration learners facing lagged reinforcement spontaneously adopted explicit rule strategies that poorly suited their task. The results represent a strong process dissociation in categorization, broadening the range of empirical techniques for testing the multiple-process theoretical perspective. This and related methods that disable associative learning—fostering a transition to explicit-declarative cognition—could have broad utility in comparative, cognitive, and developmental science.

Keywords

Category learning Explicit cognition Associative learning Category rules Procedural learning 

Notes

Author note

The preparation of this article was supported by Grants HD-060563 and HD-061455 from NICHD, and Grant BCS-0956993 from the National Science Foundation. We want to thank the research assistants in the Complex Cognition Lab at Georgia State University for their help with data collection. Original data and code is available upon request from the first author.

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Copyright information

© Psychonomic Society, Inc. 2017

Authors and Affiliations

  • J. David Smith
    • 1
  • Sonia Jamani
    • 1
  • Joseph Boomer
    • 2
  • Barbara A. Church
    • 3
  1. 1.Department of PsychologyGeorgia State UniversityAtlantaUSA
  2. 2.University at BuffaloThe State University of New YorkNew YorkUSA
  3. 3.Language Research CenterGeorgia State UniversityAtlantaUSA

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