Cognitive Psychology Flashcards
what are the three stages of consciousness?
wakefulness - awareness of ourselves, the world and our interactions with the world
Rapid Eye Movement (R.E.M.) sleep – vivid dreams and loose awareness of the world.
Non-R.E.M. sleep – minimal awareness or ourselves and the world
what are some fuzzy boundaries within states of consciousness?
There are circumstances where our ‘standard’ wakeful consciousness is altered (e.g.drugs, meditation and hypnotism)
what is walking corpse syndrome?
Graham’s believed that he was dead.A case study brain imaging showed that his brain metabolism was significantly lower and more widespread than what is normally observed in patients with major depression.
what is the mirror mark test?
This is a test often used to show that an organism has a concept of self.Evidence supports the ability to do the test in the apes (e.g. chimpanzees).There is mixed evidence in relation to other animals (e.g. dolphins and elephants).
what is the judgement of agency?
The ability to judge agency is also considered a way of measuring if an organism has a concept of self.
Recent findings suggest that chimpanzees show this ability Kaneko & Tomonagu, 2011).
what are the two principles of the consciousness equation?
That conscious things hold very rich information.
That this information is highly integrated.
what is used to research conciousness?
Introspective methods have traditionally been used to investigate consciousness.
what are the qualities of the introspective method?
- Inherently subjective – as it is about our awareness of ourselves and the environment.
- Personal/private – it is not currently possible to experience someone else’s consciousness.
what are the limitations of the introspective method?
1 – Inverted spectrum problem.
2 – Limitations of vocabulary
3 – Cognitive unconscious.
4 – Mistaken introspections.
what is the inverted spectrum problem?
How do we know that when I say a postbox is red; that inside your head you are having a similar experience?
You could be experiencing what I would call ‘violet’ but that you have learnt to call red.
It could be that you have an inverted spectrum, relative to me, but neither of us would know.
what are the limitations of vocabulary when using the introspection method?
Think about or write down how you would describe the following:
1 – A friend.
2 – The taste of your favourite food.
3 – Your favourite place.
4 – Explain how to ride a bike/swim/play a sport.
5 – Explain how you do a hobby (e.g. reading, drawing, etc.).
How easy was it to describe these things? Did you feel that you were able to get across the whole of what you were describing?Would it be easier for the other person to experience it for themselves?
what are the limitations of vocabulary when using the introspection method?
- Think about or write down how you would describe the following:
The taste of your favourite food.
Your favourite place.
Explain how to ride a bike/swim/play a sport.
Explain how you do a hobby (e.g. reading, drawing, etc.).
How easy was it to describe these things? Did you feel that you were able to get across the whole of what you were describing?Would it be easier for the other person to experience it for themselves?
- One person could describe a splinter in their finger as “excruciating painful” and another person as “sore”.
Does this mean that they experienced different levels of pain? Or could it mean that they mean different level of pain using those words?Can we tell the difference?
what is cognitive unconciousness?
There are a number of events that go on in our mind that we are not aware of (cognitive unconscious).
Due to this, we are notable to study them byself report.
- Individuals with brain damage can give us some insights into the cognitive unconscious.
- Blindsight – where an individual with visual cortex brain damage is able to visually relate to objects they report they are unable to see
who was brian thomas?
Brian Thomas and his wife Christine were holidaying in a camper van.
In the night ‘boy racers’ came making lots of noise.In his sleep Brian believed someone was in the campervan attacking his wife.
what is a crime in the UK
crime - mens rea (guilty mind) + actus reus (guilty act)
In the U.K. there is the legal defence of ‘automatism’. There are two types: ‘insane’ - and ‘non-insane’
what stage of sleep was brian thomas in?
3/4
what is an EEG?
An EEG measures voltage changes that occurring due to neuron activity.
EEG’s have good temporal resolution but poor spatial resolution.
what is an EEG?
An EEG measures voltage changes that occurring due to neuron activity.
EEG’s have good temporal resolution but poor spatial resolution.
what is the beta and alpha rhythm?
Beta rhythm – The voltage is lower and the frequency is higher (14-35 Hz)
Alpha rhythm – Regular waxing and waning of electrical activity (8-13 cycles per second Hz).
what are the four stages of non-REM sleep?
stage 1 - theta waves
stage 2 - sleep spindle and K complex
- theta waves initially and then later delta waves
stage 3 - delta waves
stage 4 - delta waves
what are the qualities of REM sleep?
- Increase in heart rate.
- Increase in respiration.
- Eyes jitter back and forth.
- High-frequency EEG activity (similar to being awake).
- Least sensitive to external stimulation.
- Muscles usually not functioning normally; sleep paralysis.
what is dreaming related to?
There is a strong association between REM sleep and dreams that are negative and are of a vivid nature.
REM dreams seem to take approximately the same timeline as the real world (if you recall five minutes of dreamtime; it relates to five minutes of REM sleep).
Dreams often include things that are occupying our current life (worries, objects or events).
what is sleep paralysis?
Sleep Paralysis occurs when there is an overlap between wakefulness and R.E.M. sleep.
Like R.E.M. sleep the individual is paralysed,except their eyes. The experiences and hallucinations seem real.
did brian thomas have a guilty mind?
Frontal cortex ‘off’; no ‘thinking’ or planning