Psychological dependence
Psychological dependence
Psychological dependence (/ˌsaɪkəˈlɒdʒɪkəl dɪˈpɛndəns/) is a form of dependence that involves emotional–motivational withdrawal symptoms upon cessation of drug use or exposure to a stimulus.
Etymology
The term "psychological dependence" is derived from the Greek word "psyche" meaning "soul" or "mind", and the Latin word "dependere" meaning "to hang from".
Definition
Psychological dependence is a state that involves emotional or motivational withdrawal symptoms upon cessation of drug use or exposure to a stimulus. These symptoms may include anxiety, restlessness, and negative mood states. It is distinct from physical dependence, which involves physical withdrawal symptoms such as nausea and shaking.
Related Terms
- Addiction: A brain disorder characterized by compulsive engagement in rewarding stimuli despite adverse consequences.
- Withdrawal: The group of symptoms that occur upon the abrupt discontinuation or decrease in intake of medications or recreational drugs.
- Tolerance: A state of adaptation in which exposure to a drug induces changes that result in a diminution of one or more of the drug's effects over time.
- Substance dependence: A state in which an individual uses a substance in order to avoid withdrawal symptoms.
See also
External links
- Medical encyclopedia article on Psychological dependence
- Wikipedia's article - Psychological dependence
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