Neuroplasticity
The brain's ability to reorganize itself by forming new neural connections, strengthening existing pathways, and pruning unused ones in response to experience, learning, or injury.
Neuroplasticity underlies learning, memory formation, and recovery from brain injury. It operates at multiple scales — from changes in synaptic strength (synaptic plasticity) to the growth of entirely new neurons (neurogenesis) and the reorganization of functional brain regions. Several nootropic and neuroprotective peptides are studied for their potential to enhance neuroplasticity.
Semax and Selank, for example, are studied partly for their effects on BDNF (brain-derived neurotrophic factor), a key molecular driver of neuroplasticity. Dihexa is another peptide investigated for its potent pro-neuroplasticity effects in animal models, particularly in the context of cognitive decline. These compounds represent an emerging area where peptide research intersects with cognitive enhancement and neuroscience.