Contributions of Lower Structures to Higher Cognition: Towards a Dynamic Network Model
William Saban1,2, Shai Gabay3
1Center for Accessible Neuropsychology, Sagol School of Neuroscience, Tel Aviv University, Tel Aviv 69978, Israel.
Journal of Intelligence
|June 27, 2023
Summary
The subcortex is crucial for developing higher cognition, challenging the view that only the cortex matters. This research introduces the SEED hypothesis, highlighting the subcortex's essential role in cognitive evolution.
Area of Science:
- Neuroscience
- Evolutionary Psychology
- Cognitive Science
Background:
- Traditional views emphasize cortical expansion for higher cognition.
- The role of subcortical regions in complex cognitive functions remains under-explored.
- Existing models offer limited perspectives on subcortical contributions to cognition.
Purpose of the Study:
- To challenge the cortical-centric view of cognition.
- To propose a new framework, the SEED hypothesis, for understanding subcortical roles.
- To explore subcortical contributions to higher-level cognitive processes like attention and numerical cognition.
Main Methods:
- Review of evolutionary theories and existing neuroscientific data.
- Identification and analysis of three models of subcortical-cortical interactions.
- Development and proposal of the SEED hypothesis based on integrated evidence.
Main Results:
- Three distinct models of subcortical-cortical relations in cognition were identified.
- The SEED (Subcortex is Essential for the Early Development) hypothesis was formulated.
- Evidence suggests subcortical computations are vital for the emergence of adaptive cognitive abilities.
Conclusions:
- The subcortex plays a fundamental role in the early development of higher cognition.
- Higher cognition emerges from integrated dynamic networks involving both cortical and subcortical structures.
- The SEED hypothesis provides a new perspective for multidisciplinary research on cognition.
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