Localisation of function Flashcards

1
Q

What is lateralisation?

A

When physical and psychological functions are controlled by a particular hemisphere

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2
Q

Where is the visual area in the brain?

A

occipital lobe

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3
Q

What happens in the visual area?

A

Each eye sends information from the right visual field to the left visual cortex and vice versa

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4
Q

What does damage to wernicke’s area cause?

A

Wernicke’s aphasia
Produce language but have trouble understanding it

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5
Q

What does the auditory area process?

A

Speech based information

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6
Q

What does damage to the auditory area cause?

A

Produces hearing loss

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7
Q

What is localisation?

A

The theory that different areas of the brain are responsible for different behaviour

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8
Q

What does damage to broca’s area cause?

A

Speech that is slow, laborious and lacks fluency

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9
Q

What is a case study for Broca’s aphasia?

A

Tan could understand spoken language but unable to produce any coherent words and could only say ‘Tan’

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10
Q

What happens if the motor area of the brain is damaged?

A

Loss of fine motor movements

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11
Q

What does the motor area control?

A

Voluntary movement

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12
Q

Where is the motor area?

A

Frontal lobe

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13
Q

What does the somatosensory area process?

A

Sensory information from the skin

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14
Q

Where is the somatosensory area?

A

Parietal lobe

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15
Q

What is the cerebral cortex?

A

The outer layer of the brain, covering the inner parts of the brain

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16
Q

How does our brain separate us from animals?

A

Because humans cerebral cortex is 3mm thick and highly developed

17
Q

What is the role of wernicke’s area?

A

Language understanding

18
Q

What is the role of Broca’s area?

A

Speech production

19
Q

What did Lashley find?

A

That when rats had 50% of their cortex removed it required all of their cortex to learn a route in a maze

20
Q

What do Lashley findings tell us about localisation?

A

They suggest that higher cognitive processes (learning) are not localised but distributed in a more holistic way in the brain

21
Q

What is a strength of brain scans when explaining localisation?

A

Petersen et al used brain scans to show activity in wernicke’s area during a listening task and Broca’s area during a reading task
Provides scientific evidence