2- Brain and behaviour

Question 1

Biological psychology

Answer 1

Scientific study of the biology of behaviour

Question 2

Neuroanatomy

Answer 2

Structure of the brain

Question 3

Neurophysiology

Answer 3

how the brain works

Question 4

What are the 2 divisions of the nervous system?

Answer 4

1. Central nervous system
2. Peripheral nervous system

Question 5

What is the CNS made up of?

Answer 5

• Brain
• Spinal cord

Question 6

What is the general name for the 2 halves of the brain?

Answer 6

Cerebral hemispheres

Question 7

What connects the 2 hemispheres?

Answer 7

Corpus callosum

Question 8

What is the left hemisphere for?

Answer 8

Speech
Controls right side of the body

Question 9

What is the right hemisphere for?

Answer 9

Spatially dominant
Controls left side of the body

Question 10

What is contralateral control?

Answer 10

Left side of the brain controls the right side of the body, right side controls the left

Question 11

What are the 4 lobes in the brain?

Answer 11

• Frontal
• Parietal
• Temporal
• Occipital

Question 12

What is the role of the frontal lobe?

Answer 12

• Takes info from all lobes
• Integrates information
• Plans actions

Question 13

What is the role of the parietal lobe?

Answer 13

Interprets sensory information

Question 14

What is the role of the temporal lobe?

Answer 14

• Interprets emotion
• Storage of memory
• The motosensory homunculus

Question 15

What is the role of the occipital lobe?

Answer 15

Vision

Question 16

What are the divisions of the peripheral nervous system?

Answer 16

1. Somatic nervous system
2. Autonomic nervous system

Question 17

What are afferents?

Answer 17

Sensory signals moving towards CNS

Question 18

What are efferents?

Answer 18

Motor signals moving from the CNS to muscles etc

Question 19

What is the somatic nervous system?

Answer 19

• Interacts with environment
• Gathers sensory info
• Sends info to CNS via afferents
• Efferents send signals to muscles

Question 20

What is the autonomic nervous system?

Answer 20

• Regulates body internal environment
• Heart rate, body temperature, digestion
• Afferents carry sensory signals from internal organs
• E.g. if we get cold the afferents will send that information to CNS. Body can do things to warm itself up such as shivering and goosebumps
• Sympathetic nerves get body ready for fight or flight
• Parasympathetic nerves act to conserve energy

Question 21

What is the sympathetic nervous system for?

Answer 21

Gets body ready for fight or flight

Question 22

What is the parasympathetic nervous system for?

Answer 22

Returns the body to a normal state after fight or flight

Question 23

In what way do neurons communicate?

Answer 23

Electrochemically

Question 24

What charge does a neuron have?

Answer 24

-70mV (the resting potential)

Question 25

What is the charge due to?

Answer 25

An imbalance of positively and negatively charged particles

Question 26

What does polarised mean?

Answer 26

In the resting potential state. This means that there is a difference in charge inside and outside of the neuron.

Question 27

What are the 4 structural divisions within neurons?

Answer 27

Input zone: post-synaptic membrane Integration zone: cell body and axon hillock Conduction zone: the axon Output zone: presynaptic membrane

Question 28

What psychological disorders involve neurotrtansmitters?

Answer 28

- Depression - Bipolar - SAD

Question 29

What prevents reuptake?

Answer 29

SSRIs

Question 30

How do SSRIs work?

Answer 30

They prevent reuptake meaning that the serotonin stays in the cleft longer so it has more of a chance to bind with the receptor site.

Question 30

How do SSRIs work?

Answer 30

They prevent reuptake meaning that the serotonin stays in the cleft longer so it has more of a chance to bind with the receptor site.