Selective Interference During the Retrieval of Spatial and Verbal Information from Episodic Long-term Memory
Title:
Selective Interference During the Retrieval of Spatial and Verbal Information from Episodic Long-term Memory
Author:
Hennighausen, Martin Heil Frank Rosler Melina Rauch Erwin
Appeared in:
International journal of psychology
Paging:
Volume 33 (1998) nr. 4 pages 249-257
Year:
1998-08-01
Contents:
Recent studies have shown that the retrieval of spatial versus verbal information is dissociated by the topography of cortical activation despite the fact that response times did not differ. We investigated whether the topographical dissociation will become apparent in a behavioural dissociation if subjects repeatedly have to switch between the retrieval task and one of two tasks which differ in the amount of load they put on the respective representational system. Therefore, retrieval of both spatial and verbal information was combined with no switching task, a mental rotation task, and a gender classification task. In the no-switching condition response times were identical for spatial and verbal information. In contrast, a more pronounced difficulty effect for spatial information was observed with mental rotation as the switching task, whereas the reverse pattern was found with gender classification. The results support the assumption of localized neural networks specialized for distinct aspects of information processing. Des etudes recentes ont montre que la recuperationde l'information spatiale et de l'informationverbale est dissociee en fonction de la topographie de l'activation corticale meme si les temps de reaction, eux, ne different pas. Dans cette etude, nous avons verifie si la dissociation topographique est apparente dans une dissociationcomportementale quandles sujets doivent passer de facon repetee de la tache de recuperation a deux autres taches qui different par la charge qu'elles imposent aux deux systemes de representation. La recuperation de l'information spatiale et de l'information verbale est donc combinee avec une tache de rotationmentale etune tache de classificationoun'estpas combinee avec ces taches. Dans la conditionsans combinaison, les temps de reactionsontidentiques pour l'information spatiale etl'informationverbale. Par contre, on observe un effet de difficulte plus marque dans la combinaison avec la tache de rotation mentale tandis que le pattern inverse est observe avec la tache de classification. Les resultats appuient l'idee de reseaux nerveux locaux specialises dans differents aspects du traitement de l'information.
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