biopsych lecture 1 week 1

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Last updated 3:28 PM on 9/10/26
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7 Terms

1
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what is biopsych? (bio and behaviour)

bio

  • brain structure and function

  • neurons and neural comms

  • genes and dev

  • neurochemistry and physiology


behaviour

  • perception and movement

  • emotion and attention

  • memory and social behaviour

  • mental health and neurological conditions


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nervous systems

CNS - brain and spinal cord

PNS - nerves outside CNS

  • somatic - sensation and voluntary movement

  • autonomic - internal organs and homeostasis


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brain

  • frontal lobe - planning, action and executive control

  • parietal lobe - body sensation and spatial processing

  • temporal lobe - hearing, memory and language

  • occipital lobe - vision


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beyond the cortex

  • thalamus - major relay and integration hub for info reaching the cortex

  • hypothalamus - homeostasis, motivation, endocrine, and autonomic regulation

  • hippocampal system - critical for forming and organising memories

  • basal ganglia - action selection, movement and learning

  • cerebellum - coordination, timing and increasingly recognised cognitive roles

  • brainstem - vital functions, arousal and communication between brain and body


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grey and white matter

grey matter - contains neuronal cell bodies, dendrites and synapses

white matter - contains myelinated axons that connect the brain regions

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brain is dynamic

  • brain activity changes from moment to moment with sensory input, thought, emotion and action

  • brain state also changes across wakefulness, attention, fatigue and sleep

  • experience can alter neural connections - capacity for change called neuroplasticity

  • dev, learning, stress, drugs and disease can all influence brain structure or function

  • brain not simply anatomical object, is continuously changing biological system


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how do we know what brain is doing

  • elec activity - EEG / ERP

  • changes in blood oxygenation - fMRI

  • brain structure - MRI

  • causal evidence - lesions and brain stimulation

  • behavioural measures - reaction time, accuracy, symptoms and performance

  • no method tells us everything, each gives us different window into the brain