Week 8B Flashcards
what afferent dos the pinnochio effect impact?
Ia
What sensory conflict arises during the pinocchio illusion
1a muscles are lengthening while cutaneous info tell us were touching our nose
Conflict - convince us nose is growing
he CNS trusting one source of sensory info over another is known as
sensory dominance
waht are the 3 raeas in the motor cortex?
pre-motor cortex, supp motor area, primary motor cortex
2 roles of premotor cortex?
selecting motor plans for voluntary moments, preparing complex tasks/movement
what are hte nuerons in the pre-motor cortex that singla preparation for movement?
motor-set neurons
what are motor set neruons and where are they found?
found in the pre-motor crotexx - singla preparation for movement “getting set”
what are the neurons active in response to sensory aspects associataed wtih motor acitons ?
mirror neurons
what do mirror neurons repsond to?
sight and sound of actions performed by others
are mirror jeurons alwayas active?
yes
2 main roles of supp motor area (SMA)
- programming complex sequences
- coordinating bi-lateral movements
true or false the SMA is based on new movements.
false - based on remeberd/previous movements
what are two things that the SMA responds to?
1/ sequence of movments
2. mental rehearsal of sequenced movements
What cortical neurons are likely responsible for a yawn
being “contagious”?
mirror neurons
does the motor homunculus represent indiviudal muscles?
no - body parts involving lots of muscles
what does the motor homunculus represent? what does it increase with?
coritcal represtnion - increased with high degrees of fine motr control/wide range of movements
the primary motor cortex relays motor commands ot the ___ via ______
alpja motor neurons via the corticospinal motor neurons
what pathway i the rpimary mtoor cortex involved in?
corticospinal pathway
when does the primary motor cortex begin firing singlas to the alpha motor enurons?
5-100ms prior to movement
what 3 thinfs does th eprimary motor cortex code for?
speed of movement
force of movement
direction of movement
what does good spatital resolution mean?
person has high accuracy in determining WHERE somehting happens
what is it called when a person has high accruacy in determining WHERE something happens ?
good spatial resolution
what is it called when a person has high accuaracy in determinign WHEN something happens
good temporal resolution
what is good temporal resoultion
high accuracy in determining WHEN somehting happens
