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What is Biological Psychology?
Forebrain
Midbrain
· The outer layer= cerebral cortex
· Top of brainstem and connects cerebral
· Thalamus: links sensory signals between cerebral cortex and
cortex to spinal cord and hindbrain
sense organs
· At the core of it is the reticular
· Hypothalamus: controls internal environment and
activating system (RAS) which brings
influences sexual behaviour and emotional arousal levels. It
sensory information from the spinal
also regulates hormone levels and controls pituitary gland
cord to the cerebral cortex and takes
activity
back motor information. This is
· Pituitary glad produces hormones and releases them into
important in maintaining or controlling
the blood.
arousal levels and influences ability to
· Basal ganglia: responsible for voluntary movements
pay attention to different stimuli
· Hippocampus: Responsible for new memories and spatial
memory
· Amygdala: responsible for feeding, drinking, sexual
behaviour and aggression.
Hindbrain
Brain stem
· Made up of cerebellum, pons and
· Made up of the
medulla
midbrain and pons
· Cerebellum is where memories for
and medulla
automatic sequences are stored e.g.
· Controls basic
walking
elements of life with
· Pons is the connection between the 2
no higher order
halves of the cerebellum
thinking processes
· Medulla contains our relax centres that
control and regulate many of our bodily
functions e.g. respiration.…read more

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What is Biological Psychology?
Frontal lobes
· Responsible for higher order and complicated functions e.
g. thinking, planning, forming ideas
· Where memory formation and retention occurs
Parietal lobes
· Contains our personalities and contributes to emotional
· Deals with information from
responses and controls our social inhibitions
body such as touch and
· It is the last part of the brain to stop growing
temperature
· Broca's area in left frontal lobe:- responsible for
· Has a role in vision:- If
production of speech.
damaged, disturbances in
integration and analysis of
sensory information e.g. able to
recognise a clock but cant tell
the time from the positions of
Temporal lobes the hands on the clock.
· Receives information from ears
about sound and balance
· Where facial recognition,
emotion and motivation occurs
· If damaged: extremes of
emotional response Occipital lobes
· Wernicke's area on left side:- · Receives main input from visual
responsible for language pathways
comprehension · If damaged, sight is lost.…read more

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What is Biological Psychology
Peripheral
Central Nervous
Nervous System
System (CNS)
(PNS)
Autonomous
Brain Spinal cord Somatic system Nervous System
(ANS)
Parasympathetic Sympathetic
division division…read more

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What is Biological Psychology?
PNS · A network of neurones located around the whole body
· Responsible for carrying information from the world to the CNS and from the
CNS to different body parts
CNS · Central control for all the activities of the body
· Where information is processed and there a co-ordination of actions (conscious
and unconscious)
Somatic Nervous · Generally conscious of responses made
System · Somatic part of nervous system is responsible for all muscles used for voluntary
ANS · Nerves of ANS run to and from internal organs and are affected by information
inside the body
· Messages transmitted by ANS regulate the function of these internal organs e.g.
heart rate
· Called ANS as many of the activities it controls are autonomous and self-
regulating and these take place when a person is asleep or unconscious
Sympathetic · Mechanism that speeds up bodily systems and prepares organism for activity
division · It is the fight or flight mechanism which prepares the body for a response (e.g.
by speeding up heart)
Parasympathetic · Responsible for retuning the body to normal by slowing it down again and
division allowing bodily functions to return to normal (to their original state)…read more

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What is Biological Psychology?
Biological psychologists study brain damaged
patients
This is because the part of the brain that's
damages will affect their behaviour
By isolating this damaged area, they can see the
impact that area has on the patient's behaviour
and everyone else's behaviour
However it is an unreliable and invalid method as
the brain damaged patient is not considered as
the average person.…read more

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