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HEMISPHERIC LATERALISATION , - Coggle Diagram
HEMISPHERIC LATERALISATION
Hemispheric lateralisation
left hemisphere = language centres, focuses on detail
right hemisphere = facial recognition, recognising emotion, spatial relationships, holistic processing, recognising patterns
the idea that the two hemispheres of the brain are functionally different and that certain mental processes and behaviours are mainly controlled by one hemisphere
if one hemisphere is more heavily involved in a specific function, it is referred to as being dominant/lateralised
Heller and Levy 1981
after each pair of photographs were shown, the ppts was asked which they thought were happier
the emotion displayed in the left hand side was generally recognised by the ppt
a series of photographs of faces that had been split (one half was smiling, the other was neutral) were shown to ppts
the right hemisphere is dominant for recognising emotion
the photo is presented to the left visual field which is processed by the right hemisphere
weakness :cry:
across many types of task and many brain areas, lateralised patterns found in younger individuals tend to switch to bilateral patterns in healthy older adults
research has suggested that lateralisation of function appears to stay the same throughout an individuals lifetime
bilateral patterns; involving both hemispheres, neither hemisphere is dominant for the function
therefore lateralisation of language function to the left hemisphere is not fixed, as the right hemisphere takes on more of this function with age
weakness :cry:
research suggest that the right hemisphere is unable to rudimentary language processing and that damage to the left hemisphere was far more detrimental to language function
Explain EB case study
research suggests that language may not be restricted to the left hemisphere
this therefore suggests that the right hemisphere is capable of processing language and developing that function when required