Evolutionary Influences: We have changed over millions of years and ADAPTED to the demands of our individual environments
Any genetically determined behaviour that enhances an individual's chance of survival and reproduction will be naturally selected
The approach proposes that the human mind and behaviour has changed over time so they are adapted to the demands of our individual environments
EEA (Environment of evolutionary adaptiveness)
The environment to which any species is adapted and selective pressures that existed at that time
Assumption 1
Evolutionary influences
Assumption 2
Localisation of brain function
Assumption 3
Neurotransmitters
Localisation of brain function
certain areas of the brain are responsible for different functions
Frontal lobe
thinking and creativity,linked to personality
Parietal lobe
sensory information(temperature,touch,pain)
Temporal lobe
Memory processing,processing auditory information
Occipital lobe
visual processing,receives info straight from eyes
Brocas areas
associated with speech production,located in the posterior portion of the frontal lobe
Wernickes area
could speak but were unable to understand language.posterior portion of the left temporal lobe
neurons
electrically excitable cells.
each neuron has many dendrites so neurons can interact with others.
they communicate with each other at a synapse,where neurotransmitters pass through.
synapse
neurotransmitters are released from the presynaptic bulb,from a vesicle.
the neurotransmitter will then stimulate or inhibit receptors cells on the postsynaptic membrane.
serotonin
plays a role in our mood,sleep and appetite.
too little serotonin can cause depression
antidepressants increase the levels of serotonin
dopamine
high levels of dopamine have been associated with symptoms of schizophrenia.
antipsychotics used to treat schizophrenia block receptors for dopamine to limit their effect.
applying evolutionary influences to human behaviour
bullying-EVOLVED GENDER DIFFERENCES-bullying is a survival tactic shaped by evolution.
Males bully to show dominance and attract mates by displaying resources.
Females bully to ensure partners loyalty and access resources
applying localisation of brain function to human behaviour
ASD_AMYGDALA DYSFUNCTION-amygdala growth occurs earlier in children with ASD compared to neurotypical children. Its essential for social interaction,hence the problems people with ASD face
applying neurotransmitters to human behaviour
Bullying-BULLYING GENES-levels of MAOA closely related to aggressive behaviour.Dysfunction to the MAOA gene can cause a low level of MAOA,not as much serotonin is broken down,results in a low level of serotonin