[4] Hemispheric Lateralisation

    Subdecks (1)

    Cards (17)

    • what is hemispheric lateralisation?

      the brain's two hemispheres are functionally different
    • On which hemisphere are the two main language centres?

      Left hemisphere
    • Where is Broca's area located?

      Left frontal lobe
    • Where is Wernicke's area located?

      Left temporal lobe
    • What does contralateral wiring mean?

      right hemisphere controls the left side, left hemisphere controls the right
    • How is vision processed (in terms of lateralisation)? technical terms
      contralateral
      ipsilateral
      - Opposite and same sided
    • How is vision processed (in terms of lateralisation) descriptive, not key terms
      Why?
      left visual field of both eyes is connected to right hemisphere.
      RVF of both eyes connected to LH.
      enables the visual areas to compare different perspectives = depth perception
    • Strength (of lateralisation) = research support in connected brains

      George Fink et al (1996)
      PET scans
      When PPTs asked to attend to global elements of an image (picture of whole forest) regions of Rh more active.
      When asked to focus on finer detail (a single tree) the specific areas of LH are more active.
    • Limitation (of lateralisation) = LH as analyser and RH as synthesiser may be wrong

      no dominant side of the brain causing specific personalities
      Jared Neilson et al (2013)
      brain scans of over 1000 people ages 7-29. no evidence of a dominant side (artistic or mathmatician)