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Mustapha Chekaf

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pour l'idHal "mustaphachekaf" :

titre
Chunk formation in immediate memory and how it relates to data compression
auteur
Mustapha Chekaf, Nelson Cowan, Fabien Mathy
article
Cognition, Elsevier, 2016, 155, pp.96 - 107. 〈10.1016/j.cognition.2016.05.024〉
annee_publi
2016
resume
This paper attempts to evaluate the capacity of immediate memory to cope with new situations in relation to the compressibility of information likely to allow the formation of chunks. We constructed a task in which untrained participants had to immediately recall sequences of stimuli with possible associations between them. Compressibility of information was used to measure the chunkability of each sequence on a single trial. Compressibility refers to the recoding of information in a more compact representation. Although compressibility has almost exclusively been used to study long-term memory, our theory suggests that a compression process relying on redundancies within the structure of the list materials can occur very rapidly in immediate memory. The results indicated a span of about three items when the list had no structure, but increased linearly as structure was added. The amount of information retained in immediate memory was maximal for the most compressible sequences, particularly when information was ordered in a way that facilitated the compression process. We discuss the role of immediate memory in the rapid formation of chunks made up of new associations that did not already exist in long-term memory, and we conclude that immediate memory is the starting place for the reorganization of information.
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titre
Chunk formation in immediate memory and how it relates to data compression
auteur
Mustapha Chekaf, Nelson Cowan, Fabien Mathy
article
Cognition, Elsevier, 2016
annee_publi
2016
resume
This paper attempts to evaluate the capacity of immediate memory to cope with new situations in relation to the compressibility of information likely to allow the formation of chunks. We constructed a task in which untrained participants had to immediately recall sequences of stimuli with possible associations between them. Compressibility of information was used to measure the chunkability of each sequence on a single trial. Compressibility refers to the recoding of information in a more compact representation. Although compressibility has almost exclusively been used to study long-term memory, our theory suggests that a compression process relying on redundancies within the structure of the list materials can occur very rapidly in immediate memory. The results indicated a span of about three items when the list had no structure, but increased linearly as structure was added. The amount of information retained in immediate memory was maximal for the most compressible sequences, particularly when information was ordered in a way that facilitated the compression process. We discuss the role of immediate memory in the rapid formation of chunks made up of new associations that did not already exist in long-term memory, and we conclude that immediate memory is the starting place for the reorganization of information.
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https://hal.archives-ouvertes.fr/hal-01372012/file/ChekafCowanMathy.pdf BibTex
titre
Chunking in working memory and its relationship to intelligence
auteur
Mustapha Chekaf, Nicolas Gauvrit, Alessandro Guida, Fabien Mathy
article
Proceedings of the 37th Annual Meeting of the Cognitive Science Society, Jul 2015, Pasadena, California, United States. 2015
annee_publi
2015
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titre
Chunking on the fly in working memory and its relationship to intelligence
auteur
Fabien Mathy, Mustapha Chekaf, Nicolas Gauvrit
article
55th Annual meeting of the Psychonomic Society, Nov 2014, Long Beach, CA, United States. 2014
annee_publi
2014
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titre
Chunking memory span of categorizable stimuli varying in number, order and compressibility
auteur
Fabien Mathy, Mustapha Chekaf
article
Talk at the 53rd Annual meeting of the Psychonomic Society, Nov 2012, Minneapolis, MN, United States. 2012
annee_publi
2012
resume
no abstract
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titre
Empan mnésique et chunking d'objets variant en nombre, ordre et compressibilité
auteur
Mustapha Chekaf, Fabien Mathy
article
Talk by M. Chekaf presented at the 54e Congrès de la Société Française de Psychologie, 2012, Montpellier, France. 2012
annee_publi
2012
resume
no abstract
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