ISSUES AND DEBATES

ISSUES AND DEBATES

 IDIOGRAPHIC AND NOMOTHETIC APPROACH


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AQA A-LEVEL: Biopsychology - Function of Endocrine System

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FUNCTION OF ENDOCRINE SYSTEM FUNCTION:  To secrete hormones in the blood stream to regulate our bodily functions. Works w/ nervous system to regulate and coordinate physiological processes Provides a chemical system of communication via the blood stream. Uses a gland network, which secretes hormones (chemical messengers) throughout the body. HORMONES - Chemicals from glands which circulate bloodstream and are carried to target structures around the body. Each hormone will stimulate a part of the body, which leads to other hormones being released like adrenaline or oestrogen PITUITARY GLAND - The gland which exerts the most influence, this "Master Gland" can control all other endocrine glands. It's governed by the hypothalamus. PITUITARY HORMONES ACTH - Regulates the steroid hormone Cortisol (C is released from adrenal gland) OXYTOCIN - Facilitates in bonding between mother and child and stimulates uterus contraction during childbirth  VASOPRESSIN...
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AQA A-LEVEL: Biopsychology - Brain Plasticity and Recovery after Trauma

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BRAIN PLASTICITY AND RECOVERY AFTER TRAUMA BRAIN PLASTICITY: Brains ability to change and adapt mentally and functionally as a result of experience and new learning. EXPERIENCE EXPECTANT PLASTICITY: Changes in the brain taking place in infancy We have 15,000 synaptic connections by 2-3yrs through synaptogenesis which is double what we have as an adult. Not all synaptic connections are used so some are deleted by cognitive pruning which strengthens the frequently used synapses. EXPERIENCE DEPENDENT PLASTICITY: When the brain continues to create new neural pathways and alter existing ones as a result of learning and life experiences. Through...  Synaptogenesis - New synapses form through life but mostly in infancy Neurogenesis - New neurones form. Occurs in infancy and adulthood. Synaptic Pruning - Synapse elimination which occurs in early childhood and the onset of puberty - occurs less in adulthood.  COMPUTER GAMING - KUHN et al  ...
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AQA A-LEVEL: Biopsychology - Localisation of Function

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LOCALISATION OF FUNCTION LOCALISATION: Theory that specific areas of the brain are associated w/ particular physical and physiological functions. M OTOR CORTEX contains the F rontal Lobe S OMATOSENSORY CORTEX contains the P arietal Lobe V ISUAL CORTEX contains the O ccipital Lobe A UDITORY CORTEX contains the T emporal Lobe Language systems are in the W ERNICKE'S AREA for Speech Comprehension and B ROCA'S AREA for Speech P roduction " M y F ather S ings P raise" " V iolets O nly A round T rees" "Women C an B ring P ower" HEMISPHERIC LATERALISATION: Dominance of one are of the brain for a particular physical and physiological function LASHLEY's Research - Localisation is incorrect, his research supports the idea of equipotentiality of the cortex. Simple functions are localised but complex functions are not MOTOR CORTEX Generates voluntary motor movements by sending messages to muscles via CNS In the frontal lobe, bo...
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