Association areas Flashcards
What is the function of association areas?
Intergrate or associate information from diverse sources
T/F Association areas are a small percentage of the human cortex
False; they are a large percent
T/F Association areas have a high level in the heirarchy
True
Lesions in the association areas have ____ and ____ qualities
Subtle and unpredictable
The limbic association area deals with what?
Behavior
Emotions
Motivation
Cells in which cortex are hyperactive in OCD?
Orbital frontal cortex
Orbital frontal cortex cells fire strongly when ______
Expectation is not met
What area processes emotion?
Ventral medial frontal area
What area is responsible for word formation?
Broca’s area
What functions as an error detector and alerts you when something is amiss?
Orbital frontal cortex
Prefrontal association areas function in what?
Prolonged thought processes/elaboration of thought
Behavior
Working memory
What is the area for language comprehension (reading)?
Parieto-occipitotemporal association area
Auditory, visual, somatic all feed into this area
Wernicke’s area
Just behind Wernicke’s is the ____ gyrus, which is responsible for ____
Angular gyrus; higher order visual signal processing
What association area is the area for naming objects?
Parieto-occipitotemporal association area
Parieto-occipitotemporal association area is responsible for analysis of what?
Analysis of spatial coordinates of the body
Analysis of spatial coordinates is associated with what syndrome?
Neglect syndrome
A prefrontal lobotomy is a surgical disconnect between what?
Prefrontal areas from the rest of the brain
Prefrontal lobotomies were used relieve what?
Severe psychotic depression
T/F Prefrontal lobotomies cause increased levels of aggressiveness
False; decreased aggressiveness
T/F Patients with prefrontal lobotomies lost the ability to solve complex problems
True
T/F Patients with prefrontal lobotomies are still able to string together sequential tasks and perform several parallel tasks at the same time
False. They cannot string together sequential tasks or perfrom parallel tasks
T/F Prefrontal lobotomies have no impact on social responses
False; cause inappropriate social responses
T/F A consequence of a prefontal lobotomy is a loss of ambition and morals
True
After a prefrontal lobotomy, the patient can still carry through long chains of thought
False
Emotional significance is gaged after identification of an object and projections form between what?
Projections from the fusiform gyrus and amygdala
If the projections between the fusiform gyrus and amygdala are damaged, what syndrome arises?
Capgras syndrome
What is the main characteristic of Capgras syndrome?
The subject thinks close relatives are imposters due to lack of emotion evoked by visually seeing them
Capgras syndrome only occurs when the subject _____ relatives
Visualizes
What is the best known form of specific language impairment?
Dyslexia
What percentage of the U.S. population has dyslexia?
5-17%
Dyslexia was originally thought to be a defect in ___ processing associated with the _____
visual; angular cortex
Dylexia may involve the ____ cortex’s inability to process certain speech sounds
Auditory
What computer program has been used with dyslexic patients?
Fast ForWard
