Cumulating retrieval inhibition in semantic and lexical domains |
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Authors: | Brown Alan S Zoccoli Sandy L Leahy Matthew M |
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Affiliation: | Department of Psychology, Dedman College, Southern Methodist University, Dallas, TX 75275, USA. abrown@smu.edu |
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Abstract: | In 3 experiments the authors examined changes in successive exemplar generation percentages within categories defined semantically (e.g., fruit-P, fruit-A, fruit-M) and by 1st letter (e.g., insect-C, sport-C, car-C), with a mixed control condition (e.g., fruit-P, insect-C, disease-M). Retrieval success declined across 12 successive items in both semantic and letter categories, with no change for the mixed condition. This retrieval inhibition is unrelated to taxonomic frequency of exemplars within either letter or semantic categorical structures. Furthermore, semantic retrieval inhibition appears to be long lasting, suggested by the decline in retrieval percentage across successive 12-item blocks in both the mixed and letter conditions. The authors suggest that different mechanisms underlie the inhibition found in the semantic (suppression) and letter (interference) conditions. |
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