Exam (elaborations)
test 2 Cognitive neuroscience questions with actual answers.
- Course
- Institution
test 2 Cognitive neuroscience questions with actual answers.
[Show more]
Seller
Follow
Content preview
test 2 Cognitive neuroscience questionswith actual answers.
population vector ANS -each neuron is contributing a "vote" to the overall activity level (sum of all the
individual vectors)
- based on the strength and length of neurons response
- involved in intention to move: the population vector shifts in the direction of the upcoming movement
before the movement is produced
preferred direction ANS -most cells (M1) in the motor area show directional tuning
- neurons are involved in creating a motor plan/ population for the intention to move
motor cortex ANS -controls voluntary movements
system: pre motor cortex, motor cortex (receives input from cerebellum, basal ganglia etc.), and
supplementary area
primary motor cortex ANS -simple voluntary movement: connection between brainstem and spinal
cord, and send projections to muscles to activate or relax muscles
- execution of movement
receptive field: neuron controls specific type of body parts or effectors (topographic)
preference: direction of movement
note: information crosses the body (decussate) at medulla, so the right motor cortex controls left body
and vise versa
somatosensory cortex ANS -somatic sensation for touch, pain, temperature, limb proprioception
(knowing where limbs are in space)
location: parietal lobe - post central sulcus
, - stimulation to different areas in the cortex cause feelings of touch in those areas of the body
(topographic map)
- more neurons dedicated to a body part = the more sensitive (pressure and temperature) ex. finger pad
has many senses
supplementary motor areas ANS -superior to the primary motor cortex and is responsible for internal
guidance, types of movement that are executed internally, planned movement
prefrontal cortex ANS -part of frontal lobe responsible for thinking, planning, and language
movement: involved in working memory, complex movement, and learning new tasks
motor planning vs. execution ANS -EXECUTION
simple movement: primary motor cortex and somatosensory
complex movement: prefrontal cortex and supplementary motor area (motor cortex and the
somatosensory cortex involved as well)
PLANNING MOVEMENT
planning movement: supplementary motor area
premotor cortex (PMC) ANS -part of the frontal lobe, involved in the computation of motor plans for
movements dependent on external stimulation
- involved in externally guided movements
learning vs learned areas (internal vs. external guidance) ANS -LEARNING
pre-motor cortex (PMC) - externally guided movement
prefrontal cortex - remembering instructions and verbalizing rules
LEARNED
SMA - internally guided movement
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Professorkaylee. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
77254 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now