PSYC4022 Testing and Assessment Week Six Neuropsychology Flashcards
A neuron
A nerve cell
Central Nervous System
The brain and spinal cord
Peripheral Nervous System
The neurons that convey messages to and from the rest of the body
Selectively permeable
Selective about what it lets in or out
Resting Potential
Starting point for the neuron
Na+
Sodium
K
Potassium
Refractory Period
After the cell fires, the chemical levels bounce down to lower than where it first started
Synapse
Junction
Lesions
Change to tissue resulting from injury or infection (Physical or Chemical). Will manifest themselves in various behaviour deficits
Focal
At one site
Diffuse
Scattered across sites
Contralateral Control
Each hemisphere of the brain receives information from the opposite side of the brain and controls motor responses on the opposite side of the body.
Nucleus
The brain of the cell
Dendrite
Carries information to the cell
Cell Body
Around the nucleus
Axon
Cell that connects the Cell Body to the Axon Terminal
Myelin Sheath
The wrapping around the Axon
Node of Ranvier
Pauses between the Axons
Axon Terminal
On the other side of the Axon sting from the Cell Body
A Neuron2
An excitable cell that processes and transmits information by electrochemical means
Hyperpolarisation
The electrical gradient of the neuron continues to drop until the charge inside is considerably less than the outside
Axon Hillcock
The neck of the cell body
Synapses
Communication between neurons occurs at specialised junctions called synapses
Presynaptic Axon Terminal
Synaptic Transmission begins when the nerve impulse reaches the presynaptic axon terminal
Acetylcholine
A neurotrasmitter that relaxes heart muscles, but tightens skeletal muscles
Forebrain
The largest part of the brain, mostly made up of cerebrum
Cerebrum
Two hemispheres, connected by the corpus callosum
Neurologically Intact Individual
Hemispheres compliment one another
Hard Sign
A definite indicator of neurological deficit e.g. cranial nerve damage as indicated by neuroimaging
Soft Sign
An indicator suggestive of neurological deficit e.g. an apparent inability to accurately copy a stimulus figure when attempting to draw it
Name 7 Parts of a Brain Cell
Cell Body Axon Nucleus Dendrite Myelin Sheath Axon Terminal Node of Ranvier
Name 3 Neurotransmitters
Dopamine
Seratonin
GABA
The brain is divided into 4 Lobes. What are they?
- Frontal
- Occipital
- Parietal
- Temporal
The Frontal Lobe contains areas for…
- Ordering information and sorting stimuli (concentration, attention, planning)
If the frontal Lobe is damaged, it may affect the following areas;
- Problem-Solving
- Abstract thinking
- Concept Formation
- Foresight
- Impairments in Concentration/ Attention
- Gross and Fine Motor
- Speech
What is the Occipital Lobe responsible for?
Visual Perception
If the occipital lobe is damaged, we might see impairments in which functions?
- Blindness to all or part of the visual field
- Deficits in Object Recognition
- Integration of Symbols
- Visual Scanning
- Imagery Recall
The Parietal Lobe contains areas for;
- Sense of touch and bodily position
If the parietal lobe is damaged, we might see impairments in;
- Deficits in touch
- Disorganisation
- Self-Perception