PSYCH 013: Immune–Brain Interactions in Psychiatry
The brain does not operate in isolation from the body’s defence systems. This chapter explores the evolving understanding of how the immune system and the brain interact - not only in illness, but as part of normal regulation of mood, behaviour, and cognition.
In this episode, we examine how immune signalling molecules, particularly cytokines, influence brain function. These signals can alter neurotransmission, neural plasticity, and circuit activity - effectively shifting how the brain processes information.
We explore the concept of “sickness behaviour” - a coordinated response to…
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