Motor Cortex Areas Of The Brain Flashcards
What does the frontal lobe have a role in
Cognition emotional regulation executive functioning expressive language short-term memory
What does the Temporal lobe have a role in
Auditory
comprehension of language
long-term memory
What does the parietal lobe have a role in
Perception
sensory detection
integration of visual
somatosensory
What does the occipital lobe have a role in
Vision
What are the motor cortex areas
The primary motor cortex premotor cortex: supplemental motor cortex Frontal eye field Broca's area prefrontal cortex
What does the primary motor cortex area do
actual execution of voluntary movement
Where does the primary motor cortex area produce movement
On the contralateral side when stimulated
What does the primary motor cortex area respond to
Proprioceptive and cutaneous input
What do lesions in the primary motor cortex area result in
Contralateral paresis
decreased fine motor
What is the premotor cortex area involved in
Sequenced patterned movements
Orientation of movement
anticipation of movement based on external cues
Where does the premotor cortex area produce movement
Bilateral movement of axial proximal distal and facial movements
What do lesions in the premotor cortex area result in
Apraxia
perseveration
What does the supplementary motor cortex area do
It’s active before movement occurs
responsible for preparation or initiation of the moment
works in sequencing (planning) goal directed movements
involved with more complex programmed motor acts
procedural memory
What does the association area do
Processes visual and auditory cues is relevant and send all the information to the primary motor cortex area
What does a lesion on the supplementary motor cortex area result in
Akinesia
decreased initiation of movement
apraxia
Perseveration
What does the supplementary motor cortex area use as cues
Internal cues
What is akinesia
Loss or impairment of voluntary movement
What does the frontal Eye field do
Voluntary eye movements
Saccades
What does a lesion in the frontal Eye field result in
Problems with lateral gaze (deviation of the eyes to the same side as the lesion)
What does Broca’s area do
Production of speech (left)
nondominant emotional content of speech (right)
What does a lesion and Broca’s area results and
Expressive aphasia
inability to produce emotional content of speech (right side lesion)
What does the prefrontal cortex do
Receives info and integrates it with the state of the environment mediates arousal states, inhibition
motivation and initiation of activity
working memory and attention
What does a lesion on the prefrontal cortex result in
Difficulty with behavior, disinhibition
perseveration
personality changes
emotional lability attention goal formation and execution
Approximately 90% of individuals with the brain injury have what part of their brain injured
The prefrontal cortex
What kind of people have lots of activity in the prefrontal motor cortex area
Altruistic
What is a functional MRI
A safe way to Map the brain that measures blood flow to certain areas in the brain during a task
When does the frontal lobe become intact
Late adolescence early adulthood
