Localisation of function in the brain Flashcards

1
Q

What is the localisation of brain function
a good place to start

A

During 19th century twas discovered that certain areas of the brain held particular functions
This is known as ‘localisation of brain function
lil bit of history 4 u there

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2
Q

What is localisation

A

The theory that specific areas of the brain are associated with particular physical and psychological functions

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3
Q

NOW
we have 2 hemispheres
the left n the right
whats right in the middle

A

Corpus collosum
pretty much just tissue
can be severed and ppl can still function normally

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4
Q

What is hemispheric lateralisaition

A

The dominance of one hemisphere of the brain for particular physical and psychological functions

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5
Q

In most respects the left n right hemispheres r similiar
so
to b difficult
name one difference between them

A

The presence of language areas are only found in the left hand side
or if u wish to b smart n psychological
THE LEFT HEMISPHERE

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6
Q

What is the broca responsible for

A

Converting thought into speech

like berocca converts my depression into vitamic c capusles that convert me into functioning semi normally
same shit different sun position

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7
Q

What does the wernicke do

A

Plays an important role in understanding other ppl’s speech and for producing speech which makes sense

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8
Q

What are the 3 structures (layers) of the brain

A

Cerebrum
Limbic system
Central core

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9
Q

What does the central core regulate

A

Our most primitive and involuntary behaviours
e.g. breathing, sleeping or sneezing
Also known as the brain stem
Includes structures such as the hypothalamus
Regulates eating and drinking
Regulates endocrine system in order to maintain homeostasis

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10
Q

What is homeostasis

A

Process by which body maintains a constant physiological state
yes we know we know
OR WE DONT
i wasnt too sure
so we made this flashcard
MOVE ON

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11
Q

What does the limbic system control

A

Our emotions
WELL MINE MUST B DOING A RATHER FUCKIN INADEQUATE JOB

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12
Q

Where is the limbic system located

A

Around central core of the brain
Interconnected w hypothalamus

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13
Q

What does the limbic system contain

A

Structures such as the hippocampus
Has key roles in memory

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14
Q

What does the cerebrum regulate

A

Our higher intellectual processes
Each of our sensory systems sends messages to and from this cerebral cortex

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15
Q

Describe the structure of the cerebrum pls

A

Has an outermost layer known as the cerebral cortex
Appears grey because of the location of cell bodies (hence “grey matter”)
Made up of the left n right hemispheres which are connected by a bundle of fibres called the corpus callosum

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16
Q

What does the corpus callosum enable

A

Messages to enter the RH to be conveyed to the LH and vice versa
Each hemisphere is further divided into 4 lobes
-Frontal
-Parietal
-Temporal
-Occipital

17
Q

Frontal lobe

A

Location for awareness of what we are doing within our environment

18
Q

Paretial lobe

A

Location for sensory and motor movements

19
Q

Occipital lobe

A

Location for vision
REALLY

20
Q

Temporal lobe

A

Location for thw auditory ability and memory acquisition

21
Q

i would like to take this moment to apologise for the lack of enthusiasm in the last 4 flashcards regarding yes the lobes

A

i was feeling a lil lazy in class
so i was brief
very brief
but what is done is done
now go have some water u dry skinned lil shit

22
Q

What does the somatosensory

A

Located in the parietal lobe
Responds to heat, cold, touch, pain and our sense of body movement
mine just be hyper active
cos all i feel is pain

23
Q

What is the motor

A

Located in the parietal lobe
Responsible for controlling voluntary movements
Left hand side controlled by RH and vice versa
Damage to this area results in impaired movements

24
Q

What is the visual

A

Located in the occipital lobe
Primary function is vision
U DONT MF SAY

25
Q

What is the auditory

A

Located in the temporal lobe
Responsible for analysis of speech-based information

26
Q

ok i must b tired
cos those flashcards were meant to say like where does this sense resonate from or shit

A

whoopsies

26
Q

Give evidence that many neurological functions are localised in relation to language and memory (+ve evaluation of brain scan evidence)

A

Peterson et al. 1988
Used brain scans to demonstrate how Wernicke’s area was active during a listening task and Broca’s area was active during a reading task, suggesting that these areas of brain have different functions
ofc ofc twas my first guess

27
Q

What is evidence of brain scan evidence with Tulving et al 1994

A

Tulving suggested that semantic memory resides in your left pre-frontal cortex
Episodic in right pre-frontal cortex
Procedural memory in cerebellum
Hippocampus helps process memory
whoop whoop it da sound of the police

28
Q

What is a +ve evaluation involving destruction the destruction of healthy brain tissue

A

Lobotomy (Freeman) - removal of brain tissue
Leucotomy - cutting the connections to a particular part of the brain
Controversially (fancy word ik ik) neurosurgery is still used today for treatment-resistant severe depressive and extreme cases of OCD
The success of these procedures strongly suggests that symptoms and behaviours associated with serious mental disorders are localised

29
Q

What is case study evidence regarding Phineas Gage
yh the man w a frickin tube thru his head

A

On train
Explosion of meter length iron pole went thru left cheek
Passed behind left eye and exited brain from skull at top of head
Was found 25-30 yrs behind him, covered in bits of brain
Knocked over but didn’t lost consciousness
excuse me but how the actual fuck
He survived, after months of recovery regained his job
Before accident he was capable and efficient man, looked at as smart and well-balanced mind
However his personality had changed from someone who was kind to someone who was now boisterous, rude and grossly boasphemous
these r very big words
His friends said he was “No longer Gage”
Damasio et al concluded altho accident was horrific , taught us a great deal about complexity of pyschological processes that occur in human brain

30
Q

What is a -ve evaluation saying higher cognitive functions are not localised
We acc gon be talking bout rats so strap on ur seatbelts and unhook ur bras cos this gon b a fun ride

A

Karl Lashley 1950 suggests basic motor and sensory functions were localised, but that hugher mental functions were not
Rats had 10-50% of their cortex removed
No area was shown to be more important than any other area of the rats’ ability to learn a maze
Process of learning appeared to require every part of the cortex, rather than being confined to a particular area
Seems to suggest the learning is too complex to be localised and requires involvement of the whole brain

this i already knew because my best friend is a rat so theres that

i still want a greenhouse

31
Q

What is cortical remapping

A

what is that sorpical napping
The brain is able to recognise itself in an attempt to recover the lost function

31
Q

What is cortical remapping

A

what is that sorpical napping
The brain is able to recognise itself in an attempt to recover the lost function

32
Q

What is Lashley’s law of equipotentiality

A

Surviving brain circuits ‘chip in’ so the neurological function can be achieved