Nervous System
What are the two parts of the Central Nervous System?
The brain & spinal cord.
What are the lobes of the brain?
frontal lobe, occipital lobe, temporal lobe, parietal lobe
What is the fatty tissue wrapped around the axon?
Myelin sheath
What variable is manipulated by the experimenter?
independent variable
what is stratified sampling?
involves dividing the population into distinct subgroups, then selecting an even sample from each sub group.
What is the main function of the nervous system?
receive information, process information & coordinate a response.
Name a function of the frontal lobe
could be: thinking, planning, organising, problem solving, short term memory & movement.
What does the presynaptic neuron do?
send messages to the post synaptic neuron.
what does it mean to operationalise a variable?
defining the IV and DV in more specific and measurable terms.
what is a strength of a within subjects design?
strict control over extraneous variables, in particular participants.
What area of the nervous system is responsible for flight, fright, freeze?
sympathetic nervous system
Name something the left brain is responsible for.
could be: sequential thinking, language, logical thought, reasoning, maths & science.
what can too much dopamine contribute to?
schizophrenia
What is an extraneous variable?
something that is effecting the DV in an unwanted way.
What is the purpose of a control group in an experimental design?
provide a baseline for comparison, helping to isolate the effect of the independent variable on the dependent variable.
What is the role of the somatic nervous system?
to control skeletal muscle and transmit sensory information to the central nervous system.
What part of the brain is included in your upstairs brain?
prefrontal cortex.
what are the three different types of neurons?
sensory, motor & interneuron
provide an example of an independent variable
A:
what is the difference between a within subjects design and a between subjects design?
in a between subjects design, participants are only expose to either the IV or the DV. In a within subject design, participants are exposed to both variables.
What is the role of the parasympathetic nervous system?
counterbalance the effects of the sympathetic nervous system.
What is the role of the corpus callosum?
connects the left and right hemispheres of the cerebral cortex.
How do sensory & motor neurons differ in function?
sensory neurons transmit sensory information to the CNS, motor neurons transmit motor information from the CNS to muscles and glands.
provide an example of a participant variable
amount of sleep, motivation, energy, pervious knowledge of the task, etc.
A researcher is trying to decide on a sampling technique for their study. Which one will provide them with the most representative sample of their population?
stratified sampling.