brain structure and aggression Flashcards
what are the hemispheres of the brain
connected by corpus callosum allowing them to communicate, reasoning and number in left, abstract thought in right
what is the cerebral cortex
conscious thought and interaction
occpitial lobe - visual
temporal lobe - auditory
parietal - sensations
frontal - cognitive skills
what is the limbic system
response to emotions linked to ANS
what is the thalamus
filters info from senses and sends it to cortex
what is the amygdala
emotions
what is the hippocampus
memory
what is the septal area
subcortical region for motivation and pleasure
what is the hypothalamus
balancing role, regialting hunger, thirst, pain, agression and sexual satisfaction
what is aggression
behaviours than can result in both physical and psychological harm to oneself, other or objects
verbal, mental, emotional, physical
personoriented- cause physical/verbal harm
instrumental - obtain a reward
reactive - hostile to situation often in response to provovation
sanctioned - either legal or permitted because ultimate outcome justifiable
what type of aggression is shown in rodants and cats
offesnsove 0 physically attack another animal
defensive - in response to threat or attack
predatory - attcking another species to gain food
how is the midbrain associated with aggression
links to amygdala and hypothalamus with prefrontal cortex, coordinates responses percieved as threat
how is the amygdala associated with aggression
emotion and motivation, instinctive feelings/reactions to the environment including aggression, interprets info as a threat or not, fight or flight
how is the prefrontal cortex related to aggression
social interaction and regulation of behviour, rational thinking and decision makeing
how is the hypothalamus related to aggression
maintains homeostasis, through regulation of hormones, linked to aggression in males via testosterone
how does the corpus callosum link to aggression
links righ and keft hermisphere, damge may lead to more reckless behviour
