In this document, there is a thorough summary of Biopsychology for the A-level AQA Psychology course. It involves strong relevant AO1 information to provide a deep understanding of the course. Alongside textbook help I have also researched the course myself and added any further information to deep...
S heat
"B rai n -a regulatic physiological processor
Autonomic -
automatic
-
freton --
becting
parasympathetic sympathetic
Nervoussystem
↳
poder commutes via necrotiaemu/howner 3
sympathetic, parasympathetic is
involuntary
processer
↳
network of
specialis a n cellsw h i ch allowfo r ~Cerebran --
for luber cerebellm-c motor skill, cor n, bale Sympulhatic Parasyrpcluch
communication to electrice cherical
·
Dienephewn-u hypothalass:hormone "Forresponse >under in excite ten sympathe
occur via signali regulation
·Spinal is
"SLUDD
·
co-ordinate the cord-scickscommunication between brain & the rest stimulator-activit inhibitsF o ractivity
working
ofo rg a n i
the body
·
of
recieve, process, relay into
2
simple reflexactions, moving hard Reflex
Encaust
Motor
2 *
but lung
Flighto r fightresponse --body's natural mechanism to deal with stressful or Somatic --
relay into from to
senser CNVs neurons = bodiesi n CNs cons
Acute
2
2
form parto fperipherd
stressors
threatening situations CNIw i l l respond to the information, sometimsa a
physical reaction
A
ganglial
sensory
as
threat/stressi s delected
2
by the
amygdala (memory, emotion) May be reflex nation -> no consciousthought n e wo n t- located in PN5i n cl u d e d
>communicates
·
with
hypothalamurt o sympathetic nervous
system Reflex a rc
in see an raisin
Manerint
~
he
communicatesw i t h to nuracrenaline 1.
adrenal medulla release adrenaline and
Sensory newer picku p information from sensory receptors
sompctho-neaubin
around the 2. Sensory neuronsreach action potential and
carry electrical impulse to relay never
-
change to
body:
increasedHR, increase
breathing,
dildernet, sweetbore 3. Relay n eve r located in CNS
"After threatn e w
passed the pansympathetic system comesi n t o water 4. CN5
processes information, it action is
required, impulse iscommunicated to a motor n e wo r
Delection (master/glad)
·
Lacrimation"
·
Salivation Digestion
·
Urination
·
5. Motor neuron carriest o effectors to contras man or
signal recreation h ormone/nutor
of
W
Endocrine
-
glanceacrosin theem
~
Chronic stressor -
long ter m Stressor
system network of
"I -
release
can be wound for year eg. stressful job instructsglandst o hormones
directly
into the bloodstream.
a
body can notsw i ve initial Forfo r long periods of tim (no digestion) <Affectsc e l l s in body when have a
receptor for thathormone
adrenocortical axis hormoner
of from all other glands
2
Adrenal physiological
itstressor
continue, hypothenic signalspituitary gland via
corticotrophin-releasing hurwone glands releaseradrenaline arouse for For
response.y HR, contracting blood vessels
-
"Pituitary gland then communicatesw i t h adrenal corter
will adenocorticotropic nor ms Pineal gland: secretesmelatonin
-
responsible for regulating sleep-wake cycle (melatonin:s leep
is
than releasesc o r t i s o l which turns
glucose usable
Thyroid gland' secreter
thyroxine regulatesmetabolic rater, growth
--
into
energy
↳
Pancreas:secreterinsulin--lowers glucose levelsi n the bloodstram
, Synaptic transmission
·
Signals between neurons a re transmitted chemically
across
synapse Synaptic cleft: gap between two newont
(exitatory/inhititury)
·
When electrical impulse reacher
presyncplic termind, triggers
it Neurotransmitter:chemical messenger which allowscommunication between neurons
I
the from Synaptic vesicle:where before
release of necrotransmitter tiny scar =
Axon carriesimpubles
away from cell d ow n
body length never
of
·
Axon covered in
myelin sheeth
4
Myelin sheath:
protecti cron &
speedsu p electrical transmission
2.
Nodeso franvier= myelin sheath-speed transmission
gapsbetween up
i fforcesimpose to
jump acrosst h e
as
gaps
·
End of c ro m -ter minal buttons t h a tcommunicate with other neurons
vice
synaptic transmission
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