The underlying biochemical, neurological, and hormonal resources required to support higher-order cognitive processes such as planning, working memory, cognitive flexibility, and inhibitory control. Deficits in this substrate often manifest as impaired decision-making or reduced mental stamina. We view this as the necessary biological foundation for complex thought.
Origin
This term synthesizes concepts from neuropsychology (Executive Function) and biochemistry/endocrinology (Substrate). Substrate here refers to the essential material upon which a process acts or is built.
Mechanism
Key substrates include optimal glucose metabolism in the prefrontal cortex, adequate levels of specific neurotransmitters, and balanced modulation by stress hormones like cortisol. Adequate mitochondrial energy production within neurons is a prerequisite for sustained executive performance. Furthermore, the availability of precursors for key signaling molecules dictates the system’s capacity to execute complex cognitive tasks efficiently.
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