Lecture 5 Sleep & Cognition

Question 1

Clerermans Theory of Consciousness

Answer 1

• is a learned activity
• no predefined neural area of the brain
• only a few neural features are needed to create consciousness
• the brain is able to develop and adapt consciouness
• ## we need to know how to know information

Question 2

Correlation

Answer 2

• demonstrates a relationship between one set of data and another
• Not causal in effect
• requires other supporting data to demonstrate cause and effect.

Question 3

Do changes in brain wave activity indicate change in consciousness

Answer 3

This is difficult to say.
- cannot rule out third factor such as signals coming from subcortical area of the brain
- correlations exist but not yet fully determined
eg: Positive Correlation: As icecream sales increase Drownings increase.
the correlation is there but the causality is that in summer people tend to eat icecream and go swimming.

Question 4

why do we need to sleep

Answer 4

• Process new learning
• recover physically and mentally
• Memory consolidation
• energy conservation

Question 5

Parasomnia

Answer 5

• Involuntary behaviours that are normally done when we are awake, occur while sleeping
• Sleep walking and sleep talking

Question 6

Barbiturates

Answer 6

any of a class of sedative and sleep-inducing drk ugs derived from barbituric acid.