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  4. TSPC2014: Proceedings of the Trieste Symposium on Perception and Cognition, November 27th-28th 2014
  5. How Does Featural Salience Affect Semantic Control Processes? A Preliminary Study
 
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How Does Featural Salience Affect Semantic Control Processes? A Preliminary Study

Montefinese, Maria
•
Hallam, Glyn
•
Jefferies, Beth
2014
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http://hdl.handle.net/10077/10533
  • Book Chapter

e-ISBN
978-88-8303-610-1
Abstract
Patients with multimodal semantic impairment following stroke (referred to here as ‘semantic aphasia’, SA) are highly sensitive to the cognitive control demands of the task being performed and poor at inhibiting strongly associated distracters and focusing on less dominant aspects of meaning. Here, using feature selection tasks, we tested the role played by a semantic measure of featural salience on the control processes in healthy participants (Experiment 1) and SA patients (Experiment 2). Healthy participants showed a worse performance when the distracter feature was highly salient and the target feature was less salient for the concept, i.e., when there was an interference with voluntary selection of the target feature (Experiment 1). Consistent with these results, the SA patients showed a poorer performance than older controls when the target feature was weakly related to the concept (Experiment 2). In line with the feature-based models of the semantic memory, we discuss these preliminary results in term of greater demands of controlled semantic retrieval when the features are weakly related to the concept in the semantic network.
Subjects
  • semantic impairment

  • semantic control

  • feature

  • selection task

Publisher
EUT Edizioni Università di Trieste
Source
Maria Montefinese, Glyn Hallam, Beth Jefferies, "How Does Featural Salience Affect Semantic Control Processes? A Preliminary Study" in: Paolo Bernardis, Carlo Fantoni, Walter Gerbino (eds.) "TSPC2014. Proceedings of the Trieste Symposium on Perception and Cognition, November 27-28", Trieste, EUT Edizioni Università di Trieste, 2014, pp. 121-124.
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en
Licence
http://creativecommons.org/licenses/by-nc-nd/4.0/
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