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RSSDopamine hypothesis of schizophrenia
The dopamine hypothesis of
schizophrenia or the
dopamine hypothesis of
psychosis is a theory that
argues that the unusual
behaviour and experiences
associated with
... > full story
Drug addiction
Drug addiction, or substance
dependence is the compulsive
use of psychoactive drugs,
to the point where the user
has no effective choice but
to continue use. Drug
addiction has two
components: physical
... > full story
Narcotic
A narcotic is an addictive
drug that reduces pain,
induces sleep and may alter
mood or behaviour. In US
legal context, narcotic
refers to opium, opium
derivatives, and their
semi-synthetic or fully
... > full story
Delusional parasitosis
Delusional parasitosis is a
form of psychosis in which
sufferers hold a delusional
belief they are infested
with parasites. It is
usually diagnosed as a
subtype of delusional
disorder. A related symptom
... > full story
Browse Reference Articles
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Substance abuse
Substance abuse refers to the overindulgence in and dependence on a stimulant, depressant, chemical substance, herb (plant) or fungus leading to effects that are detrimental to the individual's ... > more -
Circadian rhythm
A circadian rhythm is a roughly 24 hour cycle in the physiological processes of living beings, including plants, animals, fungi and cyanobacteria. In a strict sense, circadian rhythms are ... > more -
Psychoactive drug
A psychoactive drug or psychotropic substance is a chemical substance that acts primarily upon the central nervous system where it alters brain function, resulting in temporary changes in perception, ... > more -
Methylphenidate
Methylphenidate (MPH) is an amphetamine-like prescription stimulant commonly used to treat Attention Deficit Hyperactivity Disorder (ADHD) in children and ... > more -
Neurotransmitter
Neurotransmitters are chemicals that are used to relay, amplify and modulate electrical signals between a neuron and another cell. Substances that act as neurotransmitters can be roughly categorized ... > more
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