biological

• one assumption is behaviour is influenced by our central nervous sytem, genes, neurochemistry
• one assumption is that behaviour is a product of evolution and natural selection
• one strength of the biological approach is that is is very scientific as it examins physical data, structure of the brain
• one weakness of the biological approach is that it minimises free will influence in human behaviour
• extraversion is one end of the personalty dimension traits that include outgoing, sociable
• introversion is one end of the personality dimesion which traits include shyness, quietness
• traits are distinct characteristics that make up personality
• genes are made up of strands of DNA inherited from parents.
• DNA provides chemical instructions to manufacture proteins in the body
• neurochemistry is the chemical processes in the brain and nervous system. Messages are sent around the body via neurons
• evolution is the way we change overtime to survival to new environment
• genotypes are an individuals total set of genes
• phenotype is how these genes express themselves, physical traits
• the SRY gene is located on the x chromosome and is responsible for the development of male sex organs
• the nervous is split into the central nervous sytem and peripheral nervous sytem
• the central nervous system is the brain and the spinal cord
• the peripheral nervous sytem is the somatic(motor)branch and the autonomus branch that includes the sympathetic division (flight or fight) and parasympathetic division (normal state)
• localisation of brain function is that different areas of the brain have different functions
• neuroplasticity is when the brain changes with learning
• lateralisation is counter lateral control where the brain is divided into 2 halves
• the motor cortex is responsible for voluntary movements of the opposite side of the body
• the occipital lobe is responsible for vision- located at the back of the brain
• neurotransmitters allows communication between neurons across a synapse by electrical impulses
• hormones are chemical substances in the blood
• adrenaline increases your heart rate and is secreted in the inner part of the adrenal gland
• cortisol is the primary stress hormone and is secreted by the adrenal gland
• serotonin at normal levels calms the brain and stabilises mood
• dopamine is linked to motivation and reward
• EEA- environment of evolutionary adaptation is the habitat in which we evolve and live in
• genome lag is when the changes of the environment occur quicker than changes to our genes
• sexual selection is behaviour or attributes that increase reproductive success
• survival of the fittest is natural selection that selects genes that adapt to survive the changing environment and reproduce