Synaptic plasticity enhancement

1. BDNF vs. CREB signaling pathways (Nootropic Key Ideas)
2. Cognitive enhancement vs. memory enhancement (Nootropic Key Ideas)
3. Dopaminergic vs. adrenergic (Nootropic Key Ideas)
4. Dopamine vs. glutamate vs. serotonin receptors (Nootropic Key Ideas)
5. Gut bacteria vs. cognitive microbiota (Neuroscience Tips)
6. Neurotransmitter depletion vs. neurotransmitter synthesis (Nootropic Key Ideas)