October 27, 2015

Standard ized Field Sobriety Test Course Session 1 - Introduction Glossary of Terms

Standard ized Field Sobriety Test Course
Session 1 - Introduction
Glossary of Terms
1-15
Glossary of Terms
SFST
SFST Glossary
of Terms
SFST Master Glossary of Terms
ACCOMMODATION REFLEX
The adjustment of the eyes for viewing at various distances. Meaning the pupils
will automatically constrict as objects move closer and dilate as objects move
further away.
ADDICTION
Habitual, psychological, and physiological dependence on a substance beyond
one’s voluntary control.
ADDITIVE EFFECT
One mechanism of polydrug interaction. For a particular indicator of impairment,
two drugs produce an additive effect if they both affect the indicator in the same
way. For example, cocaine elevates pulse rate and PCP also elevates pulse
rate. The combination of cocaine and PCP produces an additive effect on pulse
rate.
AFFERENT NERVES
See: "Sensory Nerves."
ALKALOID
A chemical that is found in, and can be physically extracted from, some
substance. For example, morphine is a natural alkaloid of opium. It does not
require a chemical reaction to produce morphine from opium.
ALVEOLAR BREATH - Breath from the deepest part of the lung.
ANALGESIC
A drug that relieves or allays pain.
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HS 178 R5/13 9 of 24
ANALOG (of a drug)
An analog of a drug is a chemical that is very similar to the drug, both in terms of
molecular structure and in terms of psychoactive effects. For example, the drug
Ketamine is an analog of PCP.
ANESTHETIC
A drug that produces a general or local insensibility to pain and other sensation.
ANTAGONISTIC EFFECT
One mechanism of polydrug interaction. For a particular indicator of impairment,
two drugs produce an antagonistic effect if they affect the indicator in opposite
ways. For example, heroin constricts pupils while cocaine dilates pupils. The
combination of heroin and cocaine produces an antagonistic effect on pupil size.
Depending on how much of each drug was taken, and on when they were taken,
the suspect's pupils could be constricted, or dilated, or within the normal range of
size.
ARRHYTHMIA
An abnormal heart rhythm.
ARTERY
The strong, elastic blood vessels that carry blood away the heart.
ATAXIA
A blocked ability to coordinate movements. A staggering walk and poor balance
may be caused by damage to the brain or spinal cord. This can be the result of
trauma, birth defect, infection, tumor, or drug use.
AUTONOMIC NERVE
A motor nerve that carries messages to the muscles and organs that we do not
consciously control. There are two kinds of autonomic nerves, the sympathetic
nerves and parasympathetic nerves.
AXON

The part of a neuron (nerve cell) that sends out a neurotransmitter.

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