Localisation Of Function In The Brain And Hemispheric Lateralisation Flashcards
What two theories are opposing?
Localisation of function
Hemispheric lateralisation
Localisation of function suggests that specific areas of the brain are…
Specialised for certain functions. E.g motor cortex is responsible for voluntary movement only this area is responsible for this job
Hemispheric lateralisation suggests the brain is split into two…
Symmetrical halves called the left and right hemisphere
In hemispheric lateralisation, the two different hemispheres are responsible for different…
Processes e.g. left hemisphere is responsible for language and the right is responsible for recognition and creativity
The holistic theory occurred before investigations into…
Localisation and lateralisation
Holistic theory suggested that all parts of the brain…
Worked together when processing information
You must compare localisation of function to…
Holistic theory
Brocade’s area is in which hemisphere?
Left
What is Broca’s area involved in the production of?
Spoken and written language
Damage to the Broca’s area can produce…
Broca’s aphasia
Broca’s aphasia is when a person may show…
Slow speech that lacks fluency or a complete absence of speech. They may produce short meaningful speech that requires a great deal of effort
Where is the motor cortex?
Both hemispheres
What is the motor cortex involved in the creation of?
Voluntary movements
Each hemisphere controls the movement of which side of the body?
The opposite side
Damage to the motor cortex can cause loss of what?
Control over fine movements, small movements on the opposite side of the body (contra lateral wiring e.g. picking up small objects or paralysis)
Where is the somatosensory cortex found?
Both hemispheres
What does the somatosensory correct process?
Information from the senses in the skin including touch, pressure, pain and temperature from all areas in the body
Damage to the somatosensory cortex can produce problems in perceiving…
Touch, failure to recognise object by touch
Where is the visual cortex found?
Both hemispheres
The visual cortex receives information directly from…
The eyes. Right visual field in left hemisphere, left visual field in right hemisphere
The visual cortex processes information such as…
Colour and shape
If the visual cortex becomes damaged it can produce…
Blindness, hallucinations or inability to see colour or motion
Wernicke’s area is found in…
The left hemisphere
Wernicke’s area is involved in…
The understanding of language
Damage to Wernicke’s area can cause…
Wernicke’s aphasia
What is Wernicke’s aphasia?
Individuals cannot understand spoken language of produces nonsense words as part of their speech. Fluent but meaningless speech
Where is the auditory cortex found?
Both hemispheres
What is the auditory cortex associated with analysing?
Speech based information e.g hearing pitch and volume
Damage to the auditory cortex can produce…
Partial hearing loss through to full hearing loss
In an essay what areas do you always need to talk about and compare?
Broca’s area and Wernicke’s area
