There are also the effects of the drugs themselves. Let's just take alcohol as an example of a substance very much abused.
Alcohol hits two major systems within the brain, the cerebellum which is responsible for the coordination and fine motor skills, and the PFC (prefrontal cortex). When this happens inhibitions or behavioural regulatory mechanisms don't work nearly as well. Impulsivity is likely to occur with the reasoning of one's actions taking a backseat.
Other drugs may induce psychosis, delusions or any number of mental aberrations which may precipitate violent behaviour.
Some neurotransmitters like serotonin may be implicated in violent behaviour, so drugs that mess with this system may also contribute.
So along with the psychosocio factors, there are the neurochemical and neurophysiological changes to consider also.
For further info on substance abuse and violence see:
Ayesha makes some great points.
There are also the effects of the drugs themselves. Let's just take alcohol as an example of a substance very much abused.
Alcohol hits two major systems within the brain, the cerebellum which is responsible for the coordination and fine motor skills, and the PFC (prefrontal cortex). When this happens inhibitions or behavioural regulatory mechanisms don't work nearly as well. Impulsivity is likely to occur with the reasoning of one's actions taking a backseat.
Other drugs may induce psychosis, delusions or any number of mental aberrations which may precipitate violent behaviour.
Some neurotransmitters like serotonin may be implicated in violent behaviour, so drugs that mess with this system may also contribute.
So along with the psychosocio factors, there are the neurochemical and neurophysiological changes to consider also.
For further info on substance abuse and violence see:
https://d1wqtxts1xzle7.cloudfront.net/67996065/s1359-1789_2801_2900057-x20210711-1387-1j44da8-with-cover-page-v2.pdf?Expires=1649862974&Signature=boaTgOr0wpQ636eBjHRgnGqlK4TWyfFALZEzvz7lyI5eRf7Fb5CifFgaCwJFB1V-7HdsmHw~2ZB0FtWgRrbjJmgD9O54GBtHHMmnREI7MRRbAO6W2CpqAmf93XsmEGJkawMbQHiULDPEEapIM814SLXq89FLXqZkWb0QJTvZ80x2VAzP~e99LayKLwZt68R4XtwesEXIlTePr0C578wSRsWL-zDJzAZvD5EVe4zIYWEuI6tTUTKsUjORa9hAJzTejqNffbNxfh~qM25ebQNoc2cfjqqxBSmg5r6lVGj5FSA364CinomXInvcteE4oj9CQNmafoT~P0qaJ6-9krH8qg__&Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA