Psych Flashcards

(49 cards)

1
Q

Central Nervous system 

A

Consists of the brain and spinal cord

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2
Q

Peripheral nervous system 

A

Consists of the somatic and autonomic nervous system 

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3
Q

Somatic

A

Voluntary movement of skeletal muscles motor neurons communicate to the central nervous system

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4
Q

Autonomic

A

Mostly without voluntary control, this response to threats flight, fight, or freeze or homeostasis, like sharing when cold

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5
Q

Types of autonomic nervous system

A

Sympathetic and parasympathetic

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6
Q

Sympathetic and parasympathetic  nervous system

A

They’re both complimentary if I’m slow things down the other speeds, it up for examples, parasympathetic, constricts pupils by the sympathetic dilate to them

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7
Q

Reflexes

A

Unconscious response to our environment to keep us safe

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8
Q

Two types of spinal reflexes

A

Monosynaptic and Polly synoptic reflects arcs

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9
Q

Monosynaptic reflex arc

A

Direct communication between sensory and motor neurons, for example, the patella reflex

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10
Q

Polysynaltic reflex arc

A

Multiple steps, for example stimulation of pain receptors with skin initiates a withdrawal reflex

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11
Q

Why are reflexes fast?

A

As no information is passed of the cerebral cortex

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12
Q

Frontal lobe

A

Executive functions, thinking, planning organising problem-solving, emotions, behaviour, controlling personality

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13
Q

Motor cortex

A

Movement

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14
Q

Sensory
Cortex

A

Sensations

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15
Q

Parietal lobe

A

Perception, making sense of the world arithmetics

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16
Q

Occipital lobe

A

Vision

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17
Q

Temporal lobe

A

Memory, understanding and language and hearing

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18
Q

How do we create meaningful sentences?

A

Through the brocas area where wenicks area and Gershwin’s area

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19
Q

Brockas area

A

Coherent speech

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20
Q

Wernickes area

A

Speech processing and understanding language

21
Q

Wernickes aphasia

A

Talk in nonsensical sentences

22
Q

Brocas aphasia

A

Can’t speak many words

23
Q

Primary motor cortex

A

Movement of skeletal muscles left and right finger movements equal more neurons

24
Q

Cerebellum

A

Moves, communicate with primary cortex, store sequences of movements

25
Basel ganglia
Feedback, loop, controls, information, gathering, receives information from motor cortex
26
Limbic system
Amygdala hypothalamus, and mid brain areas
27
What is the limbic system in charge of?
Memory, emotion, behaviour and motivation
28
Hippocampus
Helps with emotional regulation
29
Hypothalamus
Controls basic survival action, such as regulating stress in the fight flight or freeze response
30
Amygdala
Mediate, fear and also controls how we perceive emotions
31
Neuron
Brain cell that talks with other neurons, via synaptic transmission
32
Neurotransmitter process
Neurotransmitters under your lock and key process that allows for the correct neurotransmitter to be passed from one neuron onto another
33
GABA
Main inhibitory neurotransmitter associated with nervous activity, responds to alcohol and benzodiazepines
34
Glutamate
Excitation of neurons throughout the nervous system, necessary for the changes in synapses that occur with memory formation
35
Acetylcholine
Found in brain, spinal cord, pns (everywhere), causes muscle contractions (voluntary or not), important role in learning memory and rem sleep
36
Dopamine
Involved in thoughts, feelings, motivation and behaviour. Helps control behaviour and the Brian’s reward and pleasure centres, strong reinforcer of behaviour (addictive behaviours) (can treat Parkinson’s)
37
Serotonin
Mood regulation, control of eating sleep, arousal, pain (can treat depression)
38
Norepinephrine
Stress response, increase alertness and arousal. Increase blood pressure and releases glucose into the bloodstream, regulates mood and our ability to concentrate
39
Epinephrine 
Hormone released by the adrenal gland in Response to fear, anxiety and emotional arousal  increase heart rate, breathing and blood pressure
40
Perception
The selection, organisation and interpretation of visual sensations into meaningful events and objects
41
Stage one reception
Light passes through the cornea and pupil and is focussed by the lens onto the retina which contains photoreceptors
42
Stage two transduction
Rods and cones convert light energy into nerve impulses (as signals to the brain)
43
Stage three transmission 
neural impulses, leave the retina by the optic nerve, and travelled to the occipital lobe in the brain
44
Stage four selection
feature detector cells responding to specific features of a stimulus pattern
45
Stage five organisation
The visual cortex recognises information received through the optic nerve using visual perception principles such as gestalt principles and depth cues (makes sense of what you see)
46
Stage six interpretation
Visual stimulus is given meaning. Parietal love helps judge where objects are. Temporal lobe interprets and identifies objects
47
Order of perception process
Reception, transduction transmission selection, organisation interpretation
48
Rods
Black and white, peripheral vision, detecting movement, low visual activity, dim light, edges of retina
49
Cones
Colour, middle retina, bright light