Concepts of brain function Flashcards Preview

Foundations of Neuroscience > Concepts of brain function > Flashcards

Flashcards in Concepts of brain function Deck (19):
1

Explain the nervous system of simple creatures

Reflexes only

2

How has increased complexity come about?

Evolution

3

What does the brain allow for?

Modulation of reflexes
Independent sensory and motor function

4

Describe the sensory function of the brain?

Reception vs. perception
Giving information meaning
Storage of information (memory)

5

Describe the motor function of the brain?

Decision-based activity

6

How does information get in and out of the brain?

Individual pathways (tracts) for sensory and motor
Multiple pathways for sensory and motor

7

Where in the brain does information go?

To the relevant cortex

8

How do cortexes and sides of the body relate?

The left side of the body is controlled by the right cortex of the brain

9

What is decussation?

The crossing of neurones from the left side of the body to the right and vice versa

10

What is a cortical heirarchy?

The CNS is organised into a cortical heirarchy. The cortex of the brain is the highest in the hierarchy as it has the highest level of function

11

What is unimodal association?

One area of the brain has one role, it deals with one sensory system or part of the body

12

Explain the relationship with primary and secondary cortex

The primary cortex receives information about one thing, e.g. vision
The secondary cortex interprets this information and makes sense of it

13

Tertiary regions are unimodal or multimodal?

Multimodal
They interpret many modalities (including memories and learnt behaviours)
e.g. creating depth and vision

14

What is cognition?

Higher function of the brain

15

What does cognition include?

Planning
Thinking
Language
Memory
Emotions

16

Where in the brain does cognition take place?

It is less obvious
Across the cortex and in subcortical structures

17

How has the brain got the ability to do so much?

Multiple neurotransmitters
Multiple receptors
Vast number of input to neurones

18

How many synapses does the average neurone in the brain have?

3000

19

What is the connectome?

How neurones are connected together
Those that are communicating with one another