PSYCH 099: Functional Brain Imaging in Schizophrenia
Medlock Holmes enters the Hall of Living Minds.
Unlike the museum of structural imaging, nothing here is still. Every wall pulses with colour as thoughts ignite across the cortex. Memory glows, emotion flickers, attention surges, and language races through intricate neural pathways. Holmes is no longer examining anatomy-he is watching the brain at work.
His first instrument is functional magnetic resonance imaging (fMRI).
Unlike PET, which relies on radioactive tracers, fMRI detects changes in blood oxygenation (the BOLD signal), using local blood flow as an indirect marker of neuronal…
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