Bio psych

Question 1

What is Peripheral NS?

Answer 1

Neuron outside CNS linking it to other parts of body
Somatic and Autonomic NS

Question 2

Somatic NS function

Answer 2

Transmits between receptors and CNS
Skeletal voluntary movement

Question 3

Autonomic NS function

Answer 3

Involuntary body movement
controls vital organs

Question 4

Sympathetic NS function

Answer 4

Fight or flight response, increase adrenaline, heartrate, respiration, dilute eyes

Question 5

Parasympathetic NS function

Answer 5

Maintain homeostasis, decrease adrenaline, heartrate, respiration

Question 6

Structures of CNS

Answer 6

Brain, spinal cord

Question 7

Structure of Neurons

Answer 7

Dendrites, cell body, axon, axon terminals, myelin sheath

Question 8

What are Neurotransmitters?

Answer 8

Chemicals that facilitate neuron of messages between neurons
Can be Inhibitory or Exhibitory

Question 9

Inhibitory vs Exhibitory

Answer 9

Exhibitory - Increase probability post-synaptic neuron will produce action potential
Inhibitory - Decrease probability

Question 10

Stages of neurotransmission

Answer 10

1. Action potential occurs in pre synaptic neuron
2. Neurotransmitters released into synapse
3. Diffuse across synapse to terminal on post neuron
4. Post synaptic neuron repropagate action potential if exhibitory threshold reached
5. Reuptake occurs

Question 11

Parts of the brain

Answer 11

Forebrain (Cerebral cortex, Thalamus, Hypothalamus), Hindbrain(Medulla, Cerebellum) and Midbrain(Reticular formation)

Question 12

Part of Cerebral cortex

Answer 12

Frontal, Parietal, Occipital and Temporal lobes

Question 13

Function of frontal lobe

Answer 13

Personality, high order functions

Question 14

Parts of frontal lobe

Answer 14

Prefrontal cortex, primary motor cortex, Broca’s area(Left)

Question 15

Function of Broca’s area

Answer 15

Production of fluent speech

Question 16

If Broca’s area was damaged

Answer 16

Expressive Aphasia, speech not fluent, incorrect grammar

Question 17

Function of Prefrontal cortex

Answer 17

Executive functions e.g attention, problem solving, memory, decision making

Question 18

Function of primary motor cortex

Answer 18

Voluntary body movement
Contralateral motor input

Question 19

Function of Parietal lobe

Answer 19

Process sensory info, perception, co ordination

Question 20

Primary sensory cortex function

Answer 20

Voluntary movement of certain parts
Creates meaning from raw info

Question 21

Function of Occipital lobe

Answer 21

Processes visual info
Contains primary visual cortex

Question 22

Function of primary visual cortex

Answer 22

Process visual info

Question 23

Function of Temporal lobe

Answer 23

Auditory info, long term memory, facial recognition, speech recognition

Question 24

Function of Primary Auditory cortex

Answer 24

Process auditory info

Question 25

Function of Wernicke's area

Answer 25

Understand language and comprehension

Question 26

If Wernicke's area was damaged

Answer 26

Reception aphasia, unable to understand speech

Question 27

Function of Thalamus

Answer 27

processes and relays sensory info

Question 28

Function of Hypothalamus

Answer 28

Arousal, thirst, hunger, etc.

Question 29

Function of Medulla

Answer 29

Regulate/control breathing, heartrate, digestion, etc.

Question 30

Function of Cerebrum

Answer 30

Movement, Balance and coordination

Question 31

Function of Reticular formation

Answer 31

arousal, integration and relay center, pain modulate, ocular movement

Question 32

Function of Corpus callosum

Answer 32

Connects right and left hemisphere

Question 33

What is EEG?

Answer 33

- Many small electrode placed on head - Detect electrical brain activity - recording in graph as waves - Use to diagnose disorders

Question 34

Pros and Cons of EEG

Answer 34

Pros - Non intrusive - Easy and inexpensive Cons - Cannot be localized - Limited detail

Question 35

What is CT(or CAT)?

Answer 35

- X rays and computers - Create 3d slices

Question 36

Pros and Cons of CT

Answer 36

Pros - Quick - Non- intrusive Cons - less clear than MRI - ionizing radiation

Question 37

What is MRI?

Answer 37

- Uses strong magnetic field - Detailed 3d image - Radio waves detect hydrogen atoms

Question 38

Pros and Cons of MRI

Answer 38

Pros - Precise localization - Non-intrusive Cons - Expensive - loud

Question 39

What is FMRI

Answer 39

- detects changes in oxygen in the brain - blood is magnetic and detected by magnetic field - color image

Question 40

Pros and Cons of FMRI

Answer 40

Pros - No radiation - Fast - Detailed image of functioning brain Cons - Expensive

Question 41

What is PET

Answer 41

- Inject sugar into patient - Images of activity from glucose consumption - Colored image

Question 42

Pro and Cons of PET

Answer 42

Pros - Non-intrusive - Detailed image Cons - Affects health - Slow and expensive

Question 43

Bio psych case studies

Answer 43

Phineas Gage Walter Freeman Roger Sperry