Final answer:
Psychophysiological tests are used to detect brain and nervous system changes related to emotional and psychological states.
Step-by-step explanation:
The tests referred to in the question are Psychophysiological tests. These tests are designed to detect changes in the brain and nervous system that are associated with emotional and psychological changes.
Unlike the more commonly known imaging techniques such as magnetic resonance imaging (MRI), computerized tomography (CT scans), positron emission tomography (PET), and single photon emission computed tomography (SPECT), psychophysiological tests encompass a variety of assessments that measure physiological responses as potential indicators of psychological states.
For example, these tests can include measuring electrical activity in the brain with an electroencephalogram (EEG) or gauging physiological responses through skin conductance or heart rate variability in relation to stress or emotional stimuli.
They differ from imaging techniques like MRI, CT scans, PET, and SPECT by measuring physiological responses.