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Titolo:
Hierarchies, similarity, and interactivity in object recognition: "Category-specific" neuropsychological deficits
Autore:
Humphreys, GW; Forde, EME;
Indirizzi:
Univ Birmingham, Sch Psychol, Behav Brain Sci Ctr, Birmingham B15 2TT, W Midlands, England Univ Birmingham Birmingham W Midlands England B15 2TT W Midlands, England Aston Univ, Inst Psychol, Birmingham B4 7ET, W Midlands, England Aston Univ Birmingham W Midlands England B4 7ET 7ET, W Midlands, England
Titolo Testata:
BEHAVIORAL AND BRAIN SCIENCES
fascicolo: 3, volume: 24, anno: 2001,
pagine: 453 -
SICI:
0140-525X(200106)24:3<453:HSAIIO>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Soggetto:
ANIMATE-INANIMATE DISTINCTION; SEMANTIC MEMORY; LIVING THINGS; VISUAL AGNOSIA; DOUBLE DISSOCIATION; NEURAL BASIS; COMPUTATIONAL ACCOUNT; ASSOCIATIVE KNOWLEDGE; CONCEPTUAL KNOWLEDGE; MODALITY SPECIFICITY;
Keywords:
category-specific deficits; functional imaging; hierarchical models; interactive activation models; neuropsychology; object recognition; perceptual and functional knowledge;
Tipo documento:
Review
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Life Sciences
Citazioni:
130
Recensione:
Indirizzi per estratti:
Indirizzo: Humphreys, GW Univ Birmingham, Sch Psychol, Behav Brain Sci Ctr, Birmingham B15 2TT, W Midlands, England Univ Birmingham Birmingham W Midlands England B15 2TT gland
Citazione:
G.W. Humphreys e E.M.E. Forde, "Hierarchies, similarity, and interactivity in object recognition: "Category-specific" neuropsychological deficits", BEHAV BRAIN, 24(3), 2001, pp. 453

Abstract

Category-specific impairments of object recognition and naming are among the most intriguing disorders in neuropsychology, affecting the retrieval ofknowledge about either living or nonliving things. They can give us insight into the nature of our representations of objects: Have we evolved different neural systems for recognizing different categories of object? What kinds of knowledge are important for recognizing particular objects? I low does visual similarity within a category influence object recognition and representation? What is the nature of our semantic knowledge about different objects? We review the evidence on category-specific impairments, arguing that deficits even for one class of object (e.g., living things) cannot be accounted for in terms of a single information processing disorder across all patients; problems arise at contrasting loci in different patients. The same apparent pattern of impairment can be produced by damage to different loci. According to a new processing framework for object recognition and naming, the hierarchical interactive theory (HIT), we have a hierarchy of highlyinteractive stored representations, HIT explains the variety of patients in terms of (1) lesions at different levels of processing and (2) different forms of stored knowledge used both for particular tasks and for particularcategories of object.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/11/20 alle ore 08:43:39