schizophrenia Flashcards

1
Q

what does the term schizophrenia mean

A

splitting of psychic functions

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2
Q

what are positive symptoms of schizophrenia

A

EXCESS of normal functioning

eg. feelings of being controlled

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3
Q

what are the negative symptoms of schizophrenia

A

LOSS of normal functioning

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4
Q

define alogia

A

loss of speech

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5
Q

define anhedonia

A

inability to seek pleasure

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6
Q

what percentage of pop is affected by schizophrenia

A

1%

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7
Q

define catatonia

A

motionless/ lost of movement

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8
Q

define avoilition

A

absence of motivation

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9
Q

what are the CR for schizophrenia

A

mz - 45%

dz - 10%

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10
Q

what effect does cocaine have on dopamine and schizophrenia

A

trigger schizophrenia and increase levels of dopamine

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11
Q

what did freud say delusions are a result of

A

homosexual urges

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12
Q

what did chloropromazine used to be used for

A

antihistamine

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13
Q

what effect does chloropromazine have on schizophrenia

A

calming agent

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14
Q

how does chloropromazine work

A

block dopamine receptor
stop dopamine working
increase affinity

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15
Q

where does resperine come from

A

snake root plant

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16
Q

what type of neurotransmission occurs in chloropromazine and resperine

A

antagonist neurotransmission

17
Q

what side effects does resperine cause

A

reduction in blood pressure

18
Q

how does resperine work?

A

reduction in vesicles and reduce dopamine released

19
Q

what similarities occur between chloropromazine and resperine

A
  1. drugs act under same mechanism

2. PD symptoms begin to emerge

20
Q

what are neuroleptics

A

anti schizophrenia drugd

21
Q

what are atypical neuroleptics

A

treat schizophrenia without binding strongly to D2 receptors

22
Q

what effects do psychedilic drugs cause

A

alter perception, cog and emotion

23
Q

what does ketamine mimic

A

mimic negative effects of schizophrenia

24
Q

what does LSD mimic

A

mimic the positive symptoms of schizophrenia

25
what do schizophrenia related genes disturb
myelination, glutamate transmissin and GABA synapses
26
what effect does schizophrenia have on the brain
smaller brain size neuron loss abnormalities in brain structure
27
what is green IBZM used for
chemical to measure dopamine receptors
28
what is the cause of schizophrenia
hyperactivity specifically at D2 receptors
29
what is the effect of more 'greenies' (measure of dopamine receptors
improvement of positive symptoms of S in treatment process
30
what is the effect of good binding process to D2 receptors
more effective to suppress symptoms fo schizophrenia
31
what is the effect of a good binding process to dopamine receptors
increase efficacy of the drug
32
which receptors to chloropromazine and phentothiazines bind to
both D1 AND D2 receptors
33
which receptors do haloperidol and butyrophenoes bind to
bind effectively to D2 | dont bind effectively do D1
34
what is D1 coupled with
D1 is positively coupled with adenlyate cylise
35
what is adenlyate cylise
enzyme helps pass message inside the cell
36
what is D2 coupled with
negatively coupled with adenlyate cylise
37
what does clozapine bind effectively to
D4 receptor
38
how many types of dopamine receptor are there
research shows there is more than 1 dopamine receptor