BIO-FEEDBACK/NEUROTRANSMITTERS/PARKINSON'S DISEASE Flashcards
BIO-FEEDBACK/PROCESS/STEPS
- A patient is given real-time information about their AUTONOMIC responses
- Also woven real time information about how to control these responses by psychological means.
STEPS: x 4
- Teaching the patient relaxation strategies
- Attaching the patient to a biofeedback machine. This will show their blood pressure and heart rate. Ensuring that they are in a clam state.
- The patient is able to use these strategies that they have been taught while watching the read out.
- after mastering the technique of controlling the responses, they are able to use these strategies/techniques in the real world. (Controlling their stress levels)
NEUROTRANSMITTERS
- Chemicals that cross the synapse (synaptic gap) to the post-synaptic dendrite of the next neuron.
- Attaching to the receptor sites (THE LOCK)
- Neurotransmitters are stored in vesicles in the terminal buttons
LOCK AND KEY PROCESS x 3 STEPS
LOCK = Receptor sites
KEY = Neurotransmitters
PROCESS:
- Neurotransmitters (The key) cross the synaptic gap in the hopes of binding to a receptor site (The lock) of the post synaptic neuron.
- A neurotransmitter will only attach/binds itself to the lock if the receptor site has the correct shape or similar features or patterns of the key.
- When a neurotransmitter successfully binds itself to a receptor site, it increases the likelihood for an action potential to occur, thereby influencing neural activity to the next neuron.
VESICLES
- Located in terminal buttons
- Contains neurotransmitters
NEUROTRANSMITTERS X 2
- Excitatory neurotransmitter: i.e. Glutamate, and DOPAMINE
- Inhibitory neurotransmitter: i.e. GABA
GLUTAMATE
- An EXCITATORY NEUROTRANSMITTER
- Receptor site: AMPA
- Role: Cognition, learning, movement, memory
- Caffeine
GABA
- An INHIBITORY NEUROTRANSMITTER
- Inhibits signals
- Receptor site: GABAa…
- Role: Calms/slows neurotransmission
- Alcohol/drugs
PARKINSON’S DISEASE/DOPAMINE (EFFECTS)
- Neurodegenerative disease
- Result: loss of dopamine (produced and located in the substantial nigra)
DOPAMINE:
- It is an excitatory neurotransmitter
- Produced in the substantia nigra
- Involved in smooth skeletal muscles and coordination of voluntary movements.
EFFECTS: Tremors, rigidity/stiffness of muscles, slowness of movements (BRADYKINESIA)
DEFINITION: BRADYKINESIA
- The slowness of movement (muscle movements)
MANAGING PARKINSON’S DISEASE
L-Dopa:
- Widely used treatment
- Converted to dopamine in the brain.
Dopamine Agonists:
- A type of drug
- STIMULATE dopamine receptors in the brain
- MIMICING?IMITATING the effects of Dopamine
DEFINITION: AGONIST
- Mimic/ imitates or stimulates dopamine in the brain
DEFINTION: ANTAGONIST
- Inhibit/stop the stimulation of dopamine in the brain.