The measurable enhancement of the cognitive system responsible for temporarily holding and manipulating information necessary for complex tasks like reasoning, comprehension, and learning. Improvement in working memory capacity directly correlates with enhanced executive function and fluid intelligence. This is a key target for nootropic and neuro-optimization strategies.
Origin
This is a core concept in cognitive psychology, differentiating the short-term storage of information from its active manipulation. The focus on ‘improvement’ stems from clinical and pharmacological research into enhancing cognitive reserve.
Mechanism
Improvement relies on strengthening the functional connectivity within the prefrontal cortex and its interaction with the parietal and temporal lobes. Neurotransmitter modulation, particularly the optimization of dopamine and acetylcholine signaling, is crucial, as these systems govern attention and information gating. Furthermore, neurotrophic support from factors like BDNF enhances the structural and functional plasticity required for greater memory capacity.
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