Constructing Reality using the CNS Flashcards Preview

PT 605 > Constructing Reality using the CNS > Flashcards

Flashcards in Constructing Reality using the CNS Deck (29)
Loading flashcards...
1
Q

CNS

A

brain and spinal cord

2
Q

Peripheral Nervous System Parts

A

Autonomic (communicates with internal organs and glans) and Somatic (communicates with sense organs and voluntary muscles)

3
Q

Autonomic Nervous System

A

Involuntary functions of the body
Sympathetic: fight or flight
Parasympathetic: resting and digesting

4
Q

Somatic Nervous System

A

Sensory (afferent) nervous system and efferent nervous system

5
Q

Localization

A

false idea that skull shape reflected behavior

6
Q

Contemporary Brain-Behavior

A

Brain works through nodes and networks; different parts of the brain have to communicate with each other to perform complex tasks

7
Q

Motor Control

A

Initiating, directing, and grading purposeful voluntary movement (conscious, voluntary)

8
Q

Motor Learning

A

Practice or experience that led to permanent change in the capability for producing skilled action

9
Q

Motor Development

A

Changes in human behavior over lifespan

10
Q

Reflex Theory

A

Stimulus gives rise to a response ex. stretch reflex

11
Q

Hierarchical Theory

A

Central system that controls peripheral systems; brain (highest center/cortex), brain stem n., and they influence spinal cord n.

12
Q

Reflex-Hierarchical Theory

A

Top down and bottom up control
reflexes are one of the many ways to generate movement
Commonality: sensation

13
Q

Degrees of Freedom (DoF)

A

options; CNS coordinates in time and space using a plan and then fine-tuning it

14
Q

Feedforward control

A

When you predict the movement and plan ahead; depend on end task

15
Q

Feedback control

A

sensory signal goes back and changes plan

16
Q

Two potential theoretical solutions for feedforward control

A

Motor program theory and Systems theory

17
Q

Motor Program Theory

A

Abstract representation of movement plan is stored in memory and contains the commands needed to carry out the intended action

18
Q

Systems Theory

A

Control is distributed; multiple DOF are controlled by a hierarchy in the system

19
Q

Dynamical Action Theory

A

Movements are self organized as a result of multiple elements and external feedback

20
Q

When the body has so many DOF options, how does one plan?

A

Distributed control (smaller systems cooperate w each other), muscle synergies (delegate tasks to different groups), and self organization (a movement pattern emerges as a function of a changing parameter of the learner

21
Q

Ecological theory

A

environment plays the entire role in control of movement and learning from the environment; some actions cannot be repeated in diff settings

22
Q

Contemporary Model of Motor Control

A

Individual: action system, task: discrete, continual and sequential tasks, and environment (control and non-control)

23
Q

Go to PT clinic, talk to PT, “I am not able to plantar flex b/c of pain.” pain impulses are going down spinal cord and you’re contracting m. to avoid pain.
In order to help you, try relaxing knee flexor m.
What theory of motor control is he using?

A

Reflex Theory

24
Q

Asymmetrical after acl injury. Go to PT and he says your perception of how much weight you’re putting on your leg is effected. Provide goggles so you put less weight on leg

A

Ecological theory: force you to adapt your movement to new environment

25
Q

Cognition

A

higher order abstract thinking/problem solving

26
Q

Perception

A

Personal interpretation of sensory info

27
Q

Consciousness

A

awareness of oneself and placement in environment

28
Q

Orientation

A

knowing where you are in space, time, person

29
Q

Memory

A

stored info