Transcript Hormone Levels and EEG (Ashanti)

Can be tested 3 ways blood, saliva and urine tests.
Blood is good because it measures the total amount of hormones in the
blood. It is bad because it doesn’t show which are active and which
aren’t so could cause misdiagnosis
Saliva testing is good because it can be done at home and is easy to do.
It is bad because it takes a long time to send of the sample and get
results back
Urine testing is good because it is very accurate but it is bad as it has
compliance problems
Measures the electronic activity of the brain by using electrodes attached to the
scalp. The electrical pulses are know as EEG and show an electrical signal caused
by the neurones in the brain
EEG is useful because the time resolution is very high. As other methods for
researching brain activity have time resolution between seconds and minutes, the
EEG has a resolution down to sub-millisecond. It is also good because other
methods for exploring functions in the brain rely on blood flow or metabolism which
may not have a connection with the brains electric activity.
However scalp electrodes are not sensitive enough to pick out individual action
potentials, or whether the resulting electrical activity is releasing inhibitory or
excitatory neurotransmitters. Also it only picks up the activity of large groups of
neurons, instead of an individual neuron