Lecture 15

Question 0

Disorders of perception

Answer 0

Involve impairments in the ability to organise, recognise, interpret and make sense of incoming sensory information

Question 1

Lecture 14 recap (Neuropsychology 1)

Answer 1

• Neuropsychology: Study of brain-behaviour r/ships
• mechanisms of brain injury (stroke, trauma, neurodegeneration)
• Phineas Gage: Importance of frontal lobes on controlling behaviour
• Tan: Importance of Broca’s area in language production
• H.M: Importance of hippocampus in explicit memory

Question 2

Agnosia

Answer 2

“Without knowledge”
A condition in which a person no longer knows what objects are based on their appearance.
Can still see, describe and draw those objects.
Damage to the “what” visual pathways

Question 3

Simultanagnosia

Answer 3

A condition in which a person can see parts of a visual scene but has difficulty perceiving the whole scene.
Damage or dysfunction on to upper regions of the parietal lobes. (The “where” visual pathways)

Question 4

Hemineglect

Answer 4

A condition that involves difficulty in seeing, responding to, or acting on information coming from one side of the world.
May see both sides of the world, but are likely to pay attention to one side of the world and ignore the other.
Often occurs after a stroke.
Damage or dysfunction to the parietal lobes.

Question 5

Broca’s aphasia

Answer 5

Loss of fluent speech
Halting and effortful speech
Phonemic paraphasias
Tendency to use concrete words only

Question 6

Wernicke’s aphasia

Answer 6

Loss of ability to understand written or spoken language and to produce sensible speech.
Fluent and effortless speech that has no meaning.
Semantic paraphasias
Tendency to use adjectives, adverbs and articles