Theoretical Frameworks in Neurorehab Flashcards
the reflex model is a
(a) motor control model
(b) neurological rehab model
(a) motor control model
what are the main take-away points in the reflex model?
- sensory inputs control motor outputs
- sensation is therefore needed
- complex actions are from combinations of many reflexes
What are the main limitations with the reflex model?
- movement can occur voluntarily without a sensory stimulus spurring it on
- the reflex is not the basic unit of behaviour, we move voluntarily not only by reflexes
- cannot explain fast or novel movements, nor how one stimulus can cause a varied response
in the hierarchy model, the ______ of the CNS causes our normal motor development.
corticalization
the main take-away point from the hierarchical model is that when control from (a)_________ is disrupted, (b)________ become more prominent or abnormal.
(a) higher centres
(b) reflexes
what is the main limitation of the hierarchical model?
doesn’t explain the presence of certain reflex behaviour in healthy adults.
Nowadays, it is understood that different level of the nervous system can influence others in either direction; it is not necessarily a top-down only situation.
the motor programming model focuses on ________ rather than _________.
Hint: An example is the central pattern generator which could be considered either a low level or high level program.
actions
reactions
what are the main limitations of the motor programming model?
- a pattern generator is not the sole determinant of action, and sensory imput still has an influence on motion.
- the CNS has to deal with constraints from both the environment and the musculoskeletal system.
according to the systems model, why do synergy patterns exist?
to simplify things - we have multiple degrees of freedom at multiple joints, makes it easier.
the systems model argues that interactions are in a ______ pattern, and are adaptable and flexible.
circular
what is the main limitation of the systems model
not much focus on the organism in the environment.
a horse changing it’s gait to a trot from a walk can be explained by the __________ model as the result of a system of parts reaching a critical change (called a “control parameter”).
dynamic action model
what is an attractor state?
a preferred pattern of movement
what are the main limitations of the dynamic action model?
nervous system is considered fairly unimportant, and the animal/environment interaction is the only driving force of behaviour (which it isn’t..)
the theory that stresses adaptability and the environment is _________
ecological