A duck with four legs: Investigating the structure of conceptual knowledge using picture drawing in semantic dementiaCitation formats

  • External authors:
  • Sasha Bozeat
  • Kim S. Graham
  • Karalyn Patterson
  • Helen Wilkin
  • Josephine Rowland
  • Timothy T. Rogers
  • John R. Hodges

Standard

A duck with four legs: Investigating the structure of conceptual knowledge using picture drawing in semantic dementia. / Bozeat, Sasha; Lambon Ralph, Matthew A.; Graham, Kim S.; Patterson, Karalyn; Wilkin, Helen; Rowland, Josephine; Rogers, Timothy T.; Hodges, John R.

In: Cognitive Neuropsychology, Vol. 20, No. 1, 02.2003, p. 27-47.

Research output: Contribution to journalArticle

Harvard

Bozeat, S, Lambon Ralph, MA, Graham, KS, Patterson, K, Wilkin, H, Rowland, J, Rogers, TT & Hodges, JR 2003, 'A duck with four legs: Investigating the structure of conceptual knowledge using picture drawing in semantic dementia', Cognitive Neuropsychology, vol. 20, no. 1, pp. 27-47. https://doi.org/10.1080/02643290244000176

APA

Bozeat, S., Lambon Ralph, M. A., Graham, K. S., Patterson, K., Wilkin, H., Rowland, J., ... Hodges, J. R. (2003). A duck with four legs: Investigating the structure of conceptual knowledge using picture drawing in semantic dementia. Cognitive Neuropsychology, 20(1), 27-47. https://doi.org/10.1080/02643290244000176

Vancouver

Author

Bozeat, Sasha ; Lambon Ralph, Matthew A. ; Graham, Kim S. ; Patterson, Karalyn ; Wilkin, Helen ; Rowland, Josephine ; Rogers, Timothy T. ; Hodges, John R. / A duck with four legs: Investigating the structure of conceptual knowledge using picture drawing in semantic dementia. In: Cognitive Neuropsychology. 2003 ; Vol. 20, No. 1. pp. 27-47.

Bibtex

@article{5b41f22df89c4093876f81735b86995d,
title = "A duck with four legs: Investigating the structure of conceptual knowledge using picture drawing in semantic dementia",
abstract = "In Study 1, six patients with semantic dementia were asked to produce drawings of concrete concepts from dictation of their names. The drawings were characterised by a loss of distinctive features. In the artefact domain, this feature loss resulted in representations that were increasingly box-like. In the living domain, as well as distinctive features being lost, there was a tendency for patients to include incorrect features that resulted in more familiar and {"}prototypical{"} representations. A second study included two further conditions in the drawing assessment: immediate and delayed copying of line drawings of concrete concepts. Analysis of the drawings produced by three patients with semantic dementia confirmed that overall performance was significantly influenced by the task condition (immediate>delayed) and severity of disease. The rate of intruding features, but not of omitted ones, was influenced by the domain of the item, with a greater proportion of intrusions in the living than in the nonliving domain. There was also a significant effect of feature distinctiveness on the proportions of these error types: Intruded features were most likely to come from the pool of properties that are shared across domain.",
author = "Sasha Bozeat and {Lambon Ralph}, {Matthew A.} and Graham, {Kim S.} and Karalyn Patterson and Helen Wilkin and Josephine Rowland and Rogers, {Timothy T.} and Hodges, {John R.}",
note = "654WHCOGNITIVE NEUROPSYCHOL",
year = "2003",
month = "2",
doi = "10.1080/02643290244000176",
language = "English",
volume = "20",
pages = "27--47",
journal = "Cognitive Neuropsychology",
issn = "1464-0627",
publisher = "Psychology Press Ltd",
number = "1",

}

RIS

TY - JOUR

T1 - A duck with four legs: Investigating the structure of conceptual knowledge using picture drawing in semantic dementia

AU - Bozeat, Sasha

AU - Lambon Ralph, Matthew A.

AU - Graham, Kim S.

AU - Patterson, Karalyn

AU - Wilkin, Helen

AU - Rowland, Josephine

AU - Rogers, Timothy T.

AU - Hodges, John R.

N1 - 654WHCOGNITIVE NEUROPSYCHOL

PY - 2003/2

Y1 - 2003/2

N2 - In Study 1, six patients with semantic dementia were asked to produce drawings of concrete concepts from dictation of their names. The drawings were characterised by a loss of distinctive features. In the artefact domain, this feature loss resulted in representations that were increasingly box-like. In the living domain, as well as distinctive features being lost, there was a tendency for patients to include incorrect features that resulted in more familiar and "prototypical" representations. A second study included two further conditions in the drawing assessment: immediate and delayed copying of line drawings of concrete concepts. Analysis of the drawings produced by three patients with semantic dementia confirmed that overall performance was significantly influenced by the task condition (immediate>delayed) and severity of disease. The rate of intruding features, but not of omitted ones, was influenced by the domain of the item, with a greater proportion of intrusions in the living than in the nonliving domain. There was also a significant effect of feature distinctiveness on the proportions of these error types: Intruded features were most likely to come from the pool of properties that are shared across domain.

AB - In Study 1, six patients with semantic dementia were asked to produce drawings of concrete concepts from dictation of their names. The drawings were characterised by a loss of distinctive features. In the artefact domain, this feature loss resulted in representations that were increasingly box-like. In the living domain, as well as distinctive features being lost, there was a tendency for patients to include incorrect features that resulted in more familiar and "prototypical" representations. A second study included two further conditions in the drawing assessment: immediate and delayed copying of line drawings of concrete concepts. Analysis of the drawings produced by three patients with semantic dementia confirmed that overall performance was significantly influenced by the task condition (immediate>delayed) and severity of disease. The rate of intruding features, but not of omitted ones, was influenced by the domain of the item, with a greater proportion of intrusions in the living than in the nonliving domain. There was also a significant effect of feature distinctiveness on the proportions of these error types: Intruded features were most likely to come from the pool of properties that are shared across domain.

U2 - 10.1080/02643290244000176

DO - 10.1080/02643290244000176

M3 - Article

VL - 20

SP - 27

EP - 47

JO - Cognitive Neuropsychology

T2 - Cognitive Neuropsychology

JF - Cognitive Neuropsychology

SN - 1464-0627

IS - 1

ER -