Biological approach applied psychology
- Created by: finleyyy
- Created on: 11-02-20 09:35
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- Biological Approach
- Neurotransmitters- travel across neutrons as electrical currents. When in the synase, they're chemical.
- Serotonin
- Controls mood. Low levels are linked to depression.
- Testosterone
- Primarily found in higher quantities in men. Linked to aggression.
- All-or-none - the neutron will either fire all or none at all.
- Action potential- firing of a neutron caused by transfer of ion. When a neutron sends information down the axon away from the cell body.
- Resting potential- What happens when a neutron is at rest
- Serotonin
- Explanations for abnormalities
- Biological structures control all thoughts and feelings. So faulty biological structures.
- All psychological behaviour is determined by physiology
- Comparative method
- Different species of animals have similar behaviour so can be compared to human behaviour.
- However, humans are complex so this can't always be trusted
- Physiology
- Hormones, nervous system, and brain functions are responsible for behviour. Changes in these causes behavioual changes
- Genes
- Biological units that make us who we are. Genes are passed down. We inherit behaviour. They interact with environmental influences.
- Genotype- genetic makeup, in alleles.
- Phenotype- a result of genotype, appearance or observable trait.
- Neurochemistry
- Substances and activity in nervous system. neuron- elecical in pre synaptic, chemical in synapse, electic in post synaptic.
- Genetic abnormalities lead to physiological abnormalities. They often lead to behvaioural changes. This supports the idea that physiological come before psychological.
- Brain
- Wernicke
- Helps understand language. Not speech.
- Broca
- Helps accurately communicate through speech. Not comprehend.
- Brain operates as a whole and controls all human behaviour.
- Localisation of function- different parts of the brain control different things.
- Wernicke
- Aggression
- Hostile
- Motivated by frustration. Sudden, impulsive.
- Instrumental
- Intent to cause harm. Caluculated, planned out.
- MAOa
- Destroys leftover serotonin in the synapse. Low levels of MAOa means there will be leftove serotonin. A correlation has been found with this and aggression.
- Hostile
- Gender
- Sex
- Genetic sex, biological
- Gender
- What they identify as
- Females and males process the same neurochemicals but to different degrees and through sex-specific body-brain connections.
- These differences could explain sex specific behaviour.
- Serotonin- concentration. Boys find it harder to concentrate- lower levels.
- Gender dysphoria
- When someones gender identity is different to the biological sex.
- Somatostatin- hormone that regulates the endocrine system. The level you have links to the gender you identify as- correlation.
- Sex
- Neurotransmitters- travel across neutrons as electrical currents. When in the synase, they're chemical.
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