PSYCH 005: Cellular and Synaptic Basis of Neural Signalling

Clinical Deep Dives · May 18, 2026 · 1h 8m

Beneath every thought, emotion, and behaviour lies a fundamental process: communication between neurons. This chapter explores how individual brain cells generate, transmit, and modulate signals - forming the basis of all mental activity.

In this episode, we examine the neuron as both an electrical and chemical entity. Electrical signals travel along axons as action potentials, while communication between neurons occurs at synapses through the release of neurotransmitters. This dual system allows for both speed and flexibility.

We explore how synaptic transmission is not simply a relay, but a…