Selective Short-Term Memory Deficits Arise From Impaired Domain-General Semantic Control MechanismsCitation formats

  • External authors:
  • Paul Hoffman
  • Elizabeth Jefferies
  • Sheeba Ehsan
  • Samantha Hopper
  • Samantha Walker

Standard

Selective Short-Term Memory Deficits Arise From Impaired Domain-General Semantic Control Mechanisms. / Hoffman, Paul; Jefferies, Elizabeth; Ehsan, Sheeba; Hopper, Samantha; Lambon Ralph, Matthew A.; Walker, Samantha.

In: Journal of Experimental Psychology: Learning Memory and Cognition, Vol. 35, No. 1, 01.2009, p. 137-156.

Research output: Contribution to journalArticle

Harvard

Hoffman, P, Jefferies, E, Ehsan, S, Hopper, S, Lambon Ralph, MA & Walker, S 2009, 'Selective Short-Term Memory Deficits Arise From Impaired Domain-General Semantic Control Mechanisms', Journal of Experimental Psychology: Learning Memory and Cognition, vol. 35, no. 1, pp. 137-156. https://doi.org/10.1037/a0013985

APA

Hoffman, P., Jefferies, E., Ehsan, S., Hopper, S., Lambon Ralph, M. A., & Walker, S. (2009). Selective Short-Term Memory Deficits Arise From Impaired Domain-General Semantic Control Mechanisms. Journal of Experimental Psychology: Learning Memory and Cognition, 35(1), 137-156. https://doi.org/10.1037/a0013985

Vancouver

Hoffman P, Jefferies E, Ehsan S, Hopper S, Lambon Ralph MA, Walker S. Selective Short-Term Memory Deficits Arise From Impaired Domain-General Semantic Control Mechanisms. Journal of Experimental Psychology: Learning Memory and Cognition. 2009 Jan;35(1):137-156. https://doi.org/10.1037/a0013985

Author

Hoffman, Paul ; Jefferies, Elizabeth ; Ehsan, Sheeba ; Hopper, Samantha ; Lambon Ralph, Matthew A. ; Walker, Samantha. / Selective Short-Term Memory Deficits Arise From Impaired Domain-General Semantic Control Mechanisms. In: Journal of Experimental Psychology: Learning Memory and Cognition. 2009 ; Vol. 35, No. 1. pp. 137-156.

Bibtex

@article{fc6042bb95c540ac9ba9d32d7ddc2272,
title = "Selective Short-Term Memory Deficits Arise From Impaired Domain-General Semantic Control Mechanisms",
abstract = "Semantic short-term memory (STM) patients have a reduced ability to retain semantic information over brief delays but perform well on other semantic tasks; this pattern suggests damage to a dedicated buffer for semantic information. Alternatively, these difficulties may arise from mild disruption to domain-general semantic processes that have their greatest impact on demanding STM tasks. In this study, mild semantic processing impairments were demonstrated in 2 semantic STM patients. They performed well on untimed semantic tasks but were deficient in accuracy and reaction times on speeded tasks. Demanding semantic production tasks were also affected. These patients were compared with a case series of individuals with semantic aphasia whose multimodal semantic difficulties stemmed from poor cognitive control. STM and semantic performance were more impaired in this group, but there were qualitative similarities to the semantic STM patients. The difference between the 2 patient types may be a matter of degree. In semantic aphasia, severe disruption to semantic control leads to global semantic impairments, whereas in semantic STM milder disruption might impact mainly on STM tests because of the high control demands of these tasks. {\circledC} 2009 American Psychological Association.",
keywords = "semantic control, short-term memory, stroke aphasia",
author = "Paul Hoffman and Elizabeth Jefferies and Sheeba Ehsan and Samantha Hopper and {Lambon Ralph}, {Matthew A.} and Samantha Walker",
year = "2009",
month = "1",
doi = "10.1037/a0013985",
language = "English",
volume = "35",
pages = "137--156",
journal = "Journal of Experimental Psychology: Learning Memory and Cognition",
issn = "0278-7393",
publisher = "American Psychological Association",
number = "1",

}

RIS

TY - JOUR

T1 - Selective Short-Term Memory Deficits Arise From Impaired Domain-General Semantic Control Mechanisms

AU - Hoffman, Paul

AU - Jefferies, Elizabeth

AU - Ehsan, Sheeba

AU - Hopper, Samantha

AU - Lambon Ralph, Matthew A.

AU - Walker, Samantha

PY - 2009/1

Y1 - 2009/1

N2 - Semantic short-term memory (STM) patients have a reduced ability to retain semantic information over brief delays but perform well on other semantic tasks; this pattern suggests damage to a dedicated buffer for semantic information. Alternatively, these difficulties may arise from mild disruption to domain-general semantic processes that have their greatest impact on demanding STM tasks. In this study, mild semantic processing impairments were demonstrated in 2 semantic STM patients. They performed well on untimed semantic tasks but were deficient in accuracy and reaction times on speeded tasks. Demanding semantic production tasks were also affected. These patients were compared with a case series of individuals with semantic aphasia whose multimodal semantic difficulties stemmed from poor cognitive control. STM and semantic performance were more impaired in this group, but there were qualitative similarities to the semantic STM patients. The difference between the 2 patient types may be a matter of degree. In semantic aphasia, severe disruption to semantic control leads to global semantic impairments, whereas in semantic STM milder disruption might impact mainly on STM tests because of the high control demands of these tasks. © 2009 American Psychological Association.

AB - Semantic short-term memory (STM) patients have a reduced ability to retain semantic information over brief delays but perform well on other semantic tasks; this pattern suggests damage to a dedicated buffer for semantic information. Alternatively, these difficulties may arise from mild disruption to domain-general semantic processes that have their greatest impact on demanding STM tasks. In this study, mild semantic processing impairments were demonstrated in 2 semantic STM patients. They performed well on untimed semantic tasks but were deficient in accuracy and reaction times on speeded tasks. Demanding semantic production tasks were also affected. These patients were compared with a case series of individuals with semantic aphasia whose multimodal semantic difficulties stemmed from poor cognitive control. STM and semantic performance were more impaired in this group, but there were qualitative similarities to the semantic STM patients. The difference between the 2 patient types may be a matter of degree. In semantic aphasia, severe disruption to semantic control leads to global semantic impairments, whereas in semantic STM milder disruption might impact mainly on STM tests because of the high control demands of these tasks. © 2009 American Psychological Association.

KW - semantic control

KW - short-term memory

KW - stroke aphasia

U2 - 10.1037/a0013985

DO - 10.1037/a0013985

M3 - Article

VL - 35

SP - 137

EP - 156

JO - Journal of Experimental Psychology: Learning Memory and Cognition

T2 - Journal of Experimental Psychology: Learning Memory and Cognition

JF - Journal of Experimental Psychology: Learning Memory and Cognition

SN - 0278-7393

IS - 1

ER -