Evaluating the Influence of Motor Control on Selective Attention through a Stochastic Model : The Paradigm of Motor Control Dysfunction in Cerebellar Patient
Joint Authors
Veneri, Giacomo
Federico, Antonio
Rufa, Alessandra
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-02-09
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
Attention allows us to selectively process the vast amount of information with which we are confronted, prioritizing some aspects of information and ignoring others by focusing on a certain location or aspect of the visual scene.
Selective attention is guided by two cognitive mechanisms: saliency of the image (bottom up) and endogenous mechanisms (top down).
These two mechanisms interact to direct attention and plan eye movements; then, the movement profile is sent to the motor system, which must constantly update the command needed to produce the desired eye movement.
A new approach is described here to study how the eye motor control could influence this selection mechanism in clinical behavior: two groups of patients (SCA2 and late onset cerebellar ataxia LOCA) with well-known problems of motor control were studied; patients performed a cognitively demanding task; the results were compared to a stochastic model based on Monte Carlo simulations and a group of healthy subjects.
The analytical procedure evaluated some energy functions for understanding the process.
The implemented model suggested that patients performed an optimal visual search, reducing intrinsic noise sources.
Our findings theorize a strict correlation between the “optimal motor system” and the “optimal stimulus encoders.”
American Psychological Association (APA)
Veneri, Giacomo& Federico, Antonio& Rufa, Alessandra. 2014. Evaluating the Influence of Motor Control on Selective Attention through a Stochastic Model : The Paradigm of Motor Control Dysfunction in Cerebellar Patient. BioMed Research International،Vol. 2014, no. 2014, pp.1-13.
https://search.emarefa.net/detail/BIM-450813
Modern Language Association (MLA)
Veneri, Giacomo…[et al.]. Evaluating the Influence of Motor Control on Selective Attention through a Stochastic Model : The Paradigm of Motor Control Dysfunction in Cerebellar Patient. BioMed Research International No. 2014 (2014), pp.1-13.
https://search.emarefa.net/detail/BIM-450813
American Medical Association (AMA)
Veneri, Giacomo& Federico, Antonio& Rufa, Alessandra. Evaluating the Influence of Motor Control on Selective Attention through a Stochastic Model : The Paradigm of Motor Control Dysfunction in Cerebellar Patient. BioMed Research International. 2014. Vol. 2014, no. 2014, pp.1-13.
https://search.emarefa.net/detail/BIM-450813
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-450813