The effect of encoding conditions on learning in the prototype distortion task.
Learn Behav
; 45(2): 164-183, 2017 06.
Article
em En
| MEDLINE
| ID: mdl-27858279
ABSTRACT
The prototype distortion task demonstrates that it is possible to learn about a category of physically similar stimuli through mere observation. However, there have been few attempts to test whether different encoding conditions affect learning in this task. This study compared prototypicality gradients produced under incidental learning conditions in which participants performed a visual search task, with those produced under intentional learning conditions in which participants were required to memorize the stimuli. Experiment 1 showed that similar prototypicality gradients could be obtained for category endorsement and familiarity ratings, but also found (weaker) prototypicality gradients in the absence of exposure. In Experiments 2 and 3, memorization was found to strengthen prototypicality gradients in familiarity ratings in comparison to visual search, but there were no group differences in participants' ability to discriminate between novel and presented exemplars. Although the Search groups in Experiments 2 and 3 produced prototypicality gradients, they were no different in magnitude to those produced in the absence of stimulus exposure in Experiment 1, suggesting that incidental learning during visual search was not conducive to producing prototypicality gradients. This study suggests that learning in the prototype distortion task is not implicit in the sense of resulting automatically from exposure, is affected by the nature of encoding, and should be considered in light of potential learning-at-test effects.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Formação de Conceito
/
Reconhecimento Psicológico
/
Aprendizagem
Limite:
Animals
Idioma:
En
Revista:
Learn Behav
Assunto da revista:
CIENCIAS DO COMPORTAMENTO
/
MEDICINA VETERINARIA
Ano de publicação:
2017
Tipo de documento:
Article
País de afiliação:
Austrália