Clinical observation of injured or
mentally ill individuals

Examining bodies after death

this system was observed to better understand biological psychology

nervous system

Patterns of bumps on the
skull correlated with personality traits and
abilities

phrenology

Microscopic examination of the nervous system

How does the structure of nervous system cells correlate
with behavior?

histology

Measures electricity passed
between two surface electrodes placed on skin of hand or
finger

skin conductance response

Measurement of the brain’s
electrical activity using electrodes placed on the scalp

elecroencephalogram (EEG)

Measurement formed by averaging EEG
responses to a stimulus, such as a light or tone.

event-related potential

Measurement of a single neuron’s activity
obtained through a surgically implanted electrode

single-cell recording

Recording of the tiny amounts of
magnetic output of the brain

magnetoencephalography

Measurement that uses the
accumulation of radioactively tagged glucose or oxygen to identify
activity levels in parts of the brain

Positron emission tomography