PSY 3604-8 Flashcards
Tolerance
the diminishing effect with regular use of the same dose of a drug, requiring the user to take larger and larger doses before experiencing the drug’s effect
Schizophrenia
Disorder characterized by hallucinations, delusions, disorganized speech and behavior, as well as problems in self-care and general functioning.
Psychosis
Severe impairment in the ability to tell what is real and what is not real.
Delusions
false beliefs held by a person who refuses to accept evidence of their falseness
Hallucinations
False perceptions such as things seen or heard that are not real or present.
Disorganized speech
a severe disruption of verbal communication in which ideas shift rapidly and incoherently among unrelated topics
Catatonia
a state of unresponsiveness to one’s outside environment, usually including muscle rigidity, staring, and inability to communicate
Polygenic Scores
- Estimates of an individual’s genetic liability/risk for a particular disorder or trait
- The weighted sum of all risk alleles
Genetic correlations
The degree to which two different traits are influenced by the same genes (can be positive or negative)
positive: increase = increase
negative: increase = decrease
gene-environment correlation
our genes influence the environments to which we are exposed
Dopamine
A neurotransmitter associated with movement, attention and learning and the brain’s pleasure and reward system.
Myelination
the formation of a fatty sheath around the axons of a neuron
Glutamate
An excitatory neurotransmitter that is widespread throughout the brain.
flat affect
The lack of emotional expression.
alogia
A term referring to poverty of speech; a symptom that often occurs in schizophrenia.
