David Bourget (Western Ontario)
David Chalmers (ANU, NYU)
Rafael De Clercq
Ezio Di Nucci
Jack Alan Reynolds
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Behavioral and Brain Sciences 26 (6):709-728 (2003)
High temporal resolution event-related brain potential and electroencephalographic coherence studies of the neural substrate of short-term storage in working memory indicate that the sustained coactivation of both prefrontal cortex and the posterior cortical systems that participate in the initial perception and comprehension of the retained information are involved in its storage. These studies further show that short-term storage mechanisms involve an increase in neural synchrony between prefrontal cortex and posterior cortex and the enhanced activation of long-term memory representations of material held in short-term memory. This activation begins during the encoding/comprehension phase and evidently is prolonged into the retention phase by attentional drive from prefrontal cortex control systems. A parsimonious interpretation of these findings is that the long-term memory systems associated with the posterior cortical processors provide the necessary representational basis for working memory, with the property of short-term memory decay being primarily due to the posterior system. In this view, there is no reason to posit specialized neural systems whose functions are limited to those of short-term storage buffers. Prefrontal cortex provides the attentional pointer system for maintaining activation in the appropriate posterior processing systems. Short-term memory capacity and phenomena such as displacement of information in short-term memory are determined by limitations on the number of pointers that can be sustained by the prefrontal control systems. Key Words: coherence; event-related potentials; imaging; long-term memory; memory; short-term memory; working memory.
|Keywords||coherence event-related potentials imaging long-term memory memory short-term memory working memory|
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Citations of this work BETA
Sen Cheng & Markus Werning (forthcoming). What is Episodic Memory If It is a Natural Kind? Synthese:1-41.
Wolfgang Klimesch (2012). Alpha-Band Oscillations, Attention, and Controlled Access to Stored Information. Trends in Cognitive Sciences 16 (12):606.
Fernand Gobet & Philippe Chassy (2009). Expertise and Intuition: A Tale of Three Theories. [REVIEW] Minds and Machines 19 (2):151-180.
Nicolas Bullot (2009). Toward a Theory of the Empirical Tracking of Individuals: Cognitive Flexibility and the Functions of Attention in Integrated Tracking. Philosophical Psychology 22 (3):353-387.
Michael T. Ullman (2004). Contributions of Memory Circuits to Language: The Declarative/Procedural Model. Cognition 92 (1-2):231-270.
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