Biopsychology

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  • Created by: ABCDEFILU
  • Created on: 08-03-22 09:48
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  • Biopsychology
    • split brain
      • Sperry
        • 11 people - 1/2 brain, control group - whole brain
        • shown pics, on left or right visual field
        • found - right visual field = could say and write it, left visual field = could not say or write but could choose associating object
    • plasticity
      • ability to alter and change its function
      • determines how we learn and adapt to change
        • creating new neural pathways
      • Maguire et al
        • London taxi drivers
          • more grey matter in posterior hippocampus
            • increased the longer they had been a taxi driver
      • Doidge
        • structural changes
          • axonal sprouting
          • reformation of blood vessels
          • recruitment of homologous areas
    • localisation
      • Broca's area
        • frontal lobe
        • production of speech
      • Wernicke's area
        • understanding language
        • Temporal lobe
      • visual cortex
        • processes info from eyes
        • occipital lobe
      • auditory cortex
        • temporal lobe
        • processes info from ears
      • somatosensory cortex
        • processes info of touch, pain, temperature,
        • parietal lobe
      • motor cortex
        • voluntary movement
        • frontal lobe
      • Phineas Gaga
    • ways of studying the brain
      • fMRI
        • measures increase blood flow when activity is performed
        • shows localisation of function e.g. diagnose seizures / stroke
      • EEG
        • measures how electrical activity varies over time using electrodes
        • detect and measure seizures
      • ERP
        • small voltage changes in brain measured by eegs + triggered by events
        • gage damage
      • Post-mortem
        • brains from dead
        • research
    • nervous system
      • synaptic transmission
        • 1. action potential reaches end of neuron
        • 2. neurotransmitters released from vesicle into synaptic cleft
        • 3. neurotransmitters diffuse across post-synaptic membrane + bind to specific receptors
        • 4. muscles contracts or hormone is secreted as a result
      • neurons
        • sensory
        • motor
        • relay
      • divisions
        • CNS - brain + spinal chord
        • PNS
          • somatic NS
          • autonomic NS
            • Sympathetic
            • parasympathetic

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