introduction Flashcards

1
Q

cognition

A

higher mental processes

thinking, perceiving, imagining, speaking, acting and planning

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2
Q

what does cognitive neuroscience relate to?

A

the neural basis of behaviour

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3
Q

what does cognitive neuroscience bridge the gap between?

A

biological sciences, psychology and psychiatry

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4
Q

mental representation

A

the sense in which properties of the outside world are copied/ stimulated by cognition

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5
Q

neural representation

A

the way in which properties of the outside world manifest in themselves in the neural signal

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6
Q

what has neuroimaging enabled scientists to do?

A

to begin to uncover the neural basis of consciousness, raising interesting questions about how our experience of the world is constructed

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7
Q

historical perspectives

A

do mental experiences arise in the heart or the brain?

how can a physical substance give rise to mental experiences (the mind brain problem)

dualism- the mind (eternal) and body (mortal) are separate substances

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8
Q

front

A

anterior/ rostral

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9
Q

back

A

posterior/ caudal

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10
Q

top

A

dorsal

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11
Q

bottom

A

ventral

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12
Q

lateral

A

towards side

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13
Q

medial

A

towards middle

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14
Q

same side

A

ipsilateral

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15
Q

opposite side

A

contralateral

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16
Q

transverse section

A

right angle to the neural axis (left to right)

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17
Q

sagittal section

A

parallel to neuraxis and perpendicular to the ground

front to back and vertical

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18
Q

horizontal section

A

parallel to the ground

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19
Q

peripheral nervous system contains

A

cranial nerves and spinal nerves

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20
Q

weight of the brain

A

large mass of glia and other supporting cells

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21
Q

how much body weight does the brain account for?

A

2%

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22
Q

what is the brain encased in?

A

tough bony skull and floating in CSF fluid

23
Q

how much of or blood supply does the brain use? how much oxygen?

A

20% blood

15-20% 0xygen

24
Q

how many miles of blood vessels does the human brain contain

25
hole for the passage of the spinal cord
foramen magnum
26
hole for the passage of the spinal cord
foramen magnum
27
meninges
dura mater arachnoid pitamater
28
dura mater
tough flexible outermost meninx
29
arachnoid
middle layer of the meninges like a sheet of cellophane that is draped over the brain it does not dip into the valleys of the brain contour
30
pia mater
last layer of the meninges, which adheres to the surface of the brain
31
subarachnoid space
space between the arachnoid and pia filled with cerebrospinal fluid
32
ventricular system of the brain
a set of chambers within the brain filled with cerebrospinal fluid
33
what are the ventricles
lateral third cerebral aqueduct fourth
34
CSF is formed by?
choroid plexus
35
what is CSF similar to in composition
blood plasma
36
what does the CSF do?
forms a watery cushion to protect the brain suspends the brain reducing its mass shock absorber provides optimal conditions
37
where is the CSF circulated?
lateral ventricles third ventricle cerebral aquaduct fourth ventricle. The CSF leaves the fourth ventricle and flows through the subarachnoid space The CSF flows around the brain and spinal cord CSF needs to be reabsorbed into the blood supply to prevent accumulation of fluid
38
what is the total volume of cerebrospinal fluid?
125-150ml
39
why does CSF need to be reabsorbed into the blood steam?
it is constantly being produced
40
is CSF passively or actively secreted from the brain?
actively
41
how many times a day does the entire volume of CSF turn over?
3 to 4 times a day
42
hydrocephalus
build up of fluid in the brain
43
treatment of hydrocephalus
valve to regulate pressure tube inserted into lateral ventricle tube into abdominal cavity
44
what did Luigi Galvani find?
electrical stimulation of frogs nerve caused contraction of attached muscle
45
balloonist theory
that brain inflated muscles by directing pressurised fluid/ air through the nerve
46
dual-aspect theory
mind and body are two levels of explanation of the same thing
47
reductionism
mind eventually explained solely in terms of physical/ biological theory
48
most psychologist's deal with reductionism:
complex phenomena explained in terms of simpler ones
49
most psychologists deal with generalisation
particular instances of behaviour as examples of general laws, which they deduce from their experiments explained
50
why would the corpus callosum be split
the only relief for patients with violent and frequent epileptic seizures
51
what is the corpus callosum?
a bundle of nerve fibres which serve to connect the right and left cerebral hemispheres
52
what is the left hemisphere in control of?
language and right side motor control
53
what is the right hemisphere in control of?
left side motor control
54
what ensures stimuli are presented to only one hemisphere?
tachistoscopic presentation