The cognitive neuroscience of working memory
- PMID: 25251486
- PMCID: PMC4374359
- DOI: 10.1146/annurev-psych-010814-015031
The cognitive neuroscience of working memory
Abstract
For more than 50 years, psychologists and neuroscientists have recognized the importance of a working memory to coordinate processing when multiple goals are active and to guide behavior with information that is not present in the immediate environment. In recent years, psychological theory and cognitive neuroscience data have converged on the idea that information is encoded into working memory by allocating attention to internal representations, whether semantic long-term memory (e.g., letters, digits, words), sensory, or motoric. Thus, information-based multivariate analyses of human functional MRI data typically find evidence for the temporary representation of stimuli in regions that also process this information in nonworking memory contexts. The prefrontal cortex (PFC), on the other hand, exerts control over behavior by biasing the salience of mnemonic representations and adjudicating among competing, context-dependent rules. The "control of the controller" emerges from a complex interplay between PFC and striatal circuits and ascending dopaminergic neuromodulatory signals.
Keywords: cognitive control; connectivity; dopamine; prefrontal cortex; short-term memory; top-down; working memory.
References
LITERATURE CITED
-
- Alvarez GA, Cavanagh P. The capacity of visual short-term memory is set both by visual information load and by number of objects. Psychol Sci. 2004;15:106–11. - PubMed
-
- Arnsten A. Catecholamine regulation of the prefrontal cortex. Journal of Psychopharmacology. 1997;11:151–62. - PubMed
-
- Arnsten KT, Cai JX, Murphy BL, Goldman-Rakic PS. Dopamine D1 receptor mechanisms in the cognitive performance of young adult and aged monkeys. Psychopharmacology. 1994;116:143–151. - PubMed
ANNOTATED REFERENCES
-
- Baddeley A, Hitch GJ. Working memory. In: BOWER G, editor. Recent Advances in Learning and Motivation. New York: Academic Press; 1974. The paper that introduces the highly influential multiple-component model of working memory.
-
- Gazzaley A, Cooney JW, Mcevoy K, Knight RT, D’Esposito M. Top-down enhancement and suppression of the magnitude and speed of neural activity. J Cogn Neurosci. 2005;17:507–17. A study using fMRI and ERPs that provides converging evidence that both the magnitude of neural activity and the speed of neural processing are modulated by top-down influences. - PubMed
Publication types
MeSH terms
Grants and funding
LinkOut - more resources
Full Text Sources
Other Literature Sources
Miscellaneous
