inhibition
Renshaw cells inhibit all motoneurons of the same pool
recurrent inhibition
what are the tree stages of learning?
verbal cognitive stage
motor stage
autonomous stage
What is the leading candidate for the storage of declarative memory?
hippocampus
Decorticate preparation s include the midbrain, what kind of action can be expected of animal with this structure and below intact
initiate movement
This figure displays...
(note for Davis first ss)
lack of learning common among patients with cerebellar disorders
The la interneurons inhibit motoneurons of the antagonist muscle
Reciprocal Inhibition
associating a response with a stimulus based on repetitive presentations is what type of associative learning?
Classical conditioning
how many pieces of information can we remember before consolidation or memory loss?
7 plus or minus 2
A ____ is a neural structure that controls rhythmic neural activity leading to rhythmic behaviors such as locomotion. With no higher brain input.
CPG: central pattern generator
This graph indicates...
(Note for Davis ss 2)
poor postural control in the disease state
Presynaptic inhibition induces a steady sub-threshold depolarization, at the axon terminus this achieves?
decreasing the amount of neurological transmitter released in response to a single presynaptic action potential
The following describes: interference results from switching from one skill to another or changing the context in which a task is practiced from trial to trial
contextual interference
what is a homunculus
little man mapped onto the motor cortex to illustrate relative volume controlling particular appendages
A CPG receives input from what two sources?
a higher center
peripheral sensors (visual receptors, vestibular receptors, and proprioceptors
(Note for Davis ss 3)
strong magnetic fields and radio waves to create detailed images of the inside of the body
When is Inhibition used?
Pain - nociception
movement - force production
vision, hearing, taste
name the following three stages
putting an event into an internal code
maintaining the code over time
using a key to recover the code
encoding
storage
retrieval
where might memories be stored
declarative are stored in hippocampus, medial temporal lobe, diencephalon
nondeclarative: amygdala, cerebellum, BG, cortex
Why does a chicken run when its head is cut off
CPG's are always on
the portion of the CNS that inhibits has been removed
The call to initiate movement, originates in which region of the brain?
mesencephalic locomotor region (MLR)
Recurrent inhibition provides what kind of feedback cycle?
What is the first characteristic necessary before learning can take place
movement recognition/sensory detection
which type of practice design, random or blocked, would you predict to result in greater skill retention?
Random
its well known that the right of the brain controls the body's left side, and vice versa. where does the anatomy the supports the lateralization occur
descending pyramidal tracts