False recognition following frontal lobe damage: The role of encoding factors

Détails

ID Serval
serval:BIB_A63E146E690E
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
False recognition following frontal lobe damage: The role of encoding factors
Périodique
Cognitive Neuropsychology
Auteur⸱e⸱s
Parkin AJ, Ward J, Bindschaedler C, Squires EJ, Powell G
ISSN
0264-3294
Statut éditorial
Publié
Date de publication
1999
Peer-reviewed
Oui
Volume
16
Numéro
3-5
Pages
243-265
Langue
anglais
Notes
Publication type : Article
Résumé
This paper reports a series of experiments on patient JB, a man with memory difficulties following damage to the left frontal lobe. The primary characteristic of JB's recognition memory impairment is a high level of false recognition together with a normal hit rate. The hypothesis that JB's false recognition reflects an over-reliance on familiarity is considered, but discounted on the basis that the false alarm rate is not affected by increasing the similarity between distracters and targets, and remains high when nonword stimuli are used. It is suggested, instead, that JB relies on a poorly focused memory description, which lacks item-specific detail but contains more general, low-level properties of the target items-these properties being held by many distracter items as well. This deficit is considered to arise because of damage to frontally mediated control processes involved in the selection of elements for memory encoding. An encoding deficit is supported by the fact that JB's false recognition is significantly reduced by orienting instructions, and is eliminated when his remote memory is subjected to recognition testing. In contrast, it is shown that manipulations at the level of retrieval (e.g. restricting the number of "old" responses) have little effect on his false recognition.
Mots-clé
EPISODIC MEMORY, RETRIEVAL, SYSTEMS, CORTEX, WORDS
Web of science
Création de la notice
10/03/2011 14:23
Dernière modification de la notice
20/08/2019 15:11
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