Anatomy of a Neuron
Neurons typically have three main parts. There is
the cell body, which is part of the neuron containing
the metabolic machinery that keeps the cell alive
and functional. Then there are the dendrites, which
are a branched part of a neuron that receives
impulses and conducts them toward the cell body.
Thirdly, there is the axon, which is the part of the
neuron that emerges from the cell body and travels
for a distance where it transmits impulses to glands,
muscles, or other neurons
Prevalence of Schizophrenia
The lifetime prevalence, or
the proportion of the
population found to have a
condition, of schizophrenia is
about 1%
This is roughly the same
prevalence as
Signal Detection
Hit
Miss
Psychologists are able to
study complex
perceptual processes
using the signal
detection procedure. To
use this procedure, we
would present a faint
stimulus to people on
some trials, and no
stimulus on others. The
participant’s task is then
to decide if there is a
stimulus present or not.
This procedure allows us
to record four possible
types of outcomes
Correct
Rejection
False
Alarm