Measures the levels of oxygen in different parts of the brain.
1 of 21
Evaluate FMRI.
+ No radiation -Expensive
2 of 21
Outline EEG's.
Measure tiny impulses in the brain to view brain wave patterns.
3 of 21
Evaluate EEG's.
+Diagnoses epilepsy -Too general
4 of 21
Outline Event related potentials.
Measure the electrophysical response to different tasks.
5 of 21
Evaluate Event related potentials.
+More specific -Not standardised
6 of 21
Outline Post mortem's.
After death, the brain is looked at for any abnormalities in the structure.
7 of 21
Evaluate post mortem's.
+Specific, good resolution -Undiagnosed problems
8 of 21
Name the parts of the Nervous system.
The CNS is made up of the brain and spinal cord, also the peripheral NS. This is made up of the Somatic NS and the automatic NS- sympatheric and parasympathetic.
9 of 21
Describe the process of the endocrine system.
Glands secrete hormones, a signal is made from the hippocampal to the target gland, they release the hormone and when the levels are risen, a signal for the hormones to stop being released. Hormones circulate in the blood stream.
10 of 21
Give two examples of the endocrine system.
Adrenal gland- adrenaline, Ovaries- progesterone.
11 of 21
Describe the sensory neuron.
Sensory neuron- long densrites and short axons. Convert information into neural impulses connect to sensory cells.
12 of 21
Describe the relay neuron.
Short axons and short dendrites, communicate between sensory and motor neurons. In the CNS.
13 of 21
Describe the motor neuron.
They have long axons and short dendrites, communicate to the muscles and make them move and react.
14 of 21
Evaluate the fight or flight response.
+Van Dawans, causes people to be more sociable. +Harley and Lee, found XYY gene. -Negative consequences, -Gary, many people freeze as a response.
15 of 21
Outline the circadian rhythms.
This is a 24 hour cycle, endogenous factors including light and body tempreture change levels of melatonin in the pineal gland. Siffre, cave study, there for 151 days but believed this was for 179 days, his cycle increased to 25 hours.
16 of 21
Evaluate circadian rhythms.
+Folkard, 12 students, went down to 22 hours, couldn't adjust, -Duffy, different people react differently to sleep patterns, -Methodological errors, artifical light and ignored body temp.
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Outline Infradian rhythms.
Less than 24 hours, more than once a year. Menstural cycle, egg is released from the ovaries. SAD, darkness, imbalence in hormones.
18 of 21
Evaluate Infradian rhythms.
+Stern and McClintock, 29 women with irregular periods, 68% of periods changed, +RLA, light boces, -Other factors (diet and stress) -Evolutionary factors, more masculine, more attractive while ovulating.
19 of 21
Outline Ultradian rhythms.
More than one cycle in 24 hours. Sleep cycle, different stages of sleep, REM stage- more likely to dream.
20 of 21
Evaluate Ultradian rhythms.
Kleitman and Dement, used an EEG and woke up participants at different stages, 80
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