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Flashcards in Sleep + consciousness definition Deck (80)
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1

Consciousness

Our awareness of internal and external environments at any given moment in time.

2

Psychological construct

A concept used to describe something that is believed to exist, because we can measure its effects, but we cannot directly observe or measure it.

3

Subjective data

Data collected through personal observations, interpretations, emotions and judgments.

4

Objective data

Measurements of behaviour collected under controlled conditions, which allows data to be directly observed or measured.

5

State of consciousness

An individuals level of awareness of internal and external stimuli at any given moment.

6

Attention

A voluntary or involuntary tendency to orient towards or focus on a particular stimulus and ignore other stimuli.

7

Normal waking consciousness (NWC)

An individuals level of awareness of internal and external stimuli at any given moment.

8

Altered state of consciousness (ASC)

A state of consciousness that is characteristically different from normal waking consciousness in terms of awareness, sensation and perception.

9

Naturally occurring ASC

An ASC that is produced spontaneously without any conscious effort or decision making(eg. Daydreaming).

10

Induced ASC

An ASC that is intentionally produced (eg. Drugs and alcohol)

11

Electroencephalograph (EEG)

A machine used to detect, amplify and record the brains electrical activity, measured in the form of brainwaves.

12

Frequency (of brainwaves)

The number of brainwaves per second.

13

Amplitude (of brainwaves)

The strength of a brainwave as measured by the size of the peaks and troughs from a baseline of zero activity.

14

Beta waves

Brainwaves characteristics of normal waking consciousness, with a low-amplitude and high frequency.

15

Alpha waves

Brainwaves experienced during a deeply relaxed state, with a low-medium amplitude and medium-high frequency.

16

Theta waves

Brainwaves experienced during the early stages of sleep, with a mix of medium-high amplitude and a low-medium frequency.

17

Delta waves

Brainwaves experienced during the deepest stages of sleep, with high amplitude and low frequency.

18

Electrooculograph (EOG)

A machine used to detect, amplify and record the electrical activity of muscles that control eye movement.

19

Electromyograph (EMG)

A machine used to detect, amplify and record the electrical activity of voluntary muscles.

20

Psychometric vigilance test (PVT)

A test used to measure behavioural alertness, where participants respond to a visual stimulus and their speed and accuracy of the task are measured.

21

Self-report

Involves and individual keeping a record of their own subjective experiences (thoughts, feeling and behaviours)

22

Sleep diary

A log of subjective behavioural and psychological experiences surrounding a persons sleep.

23

Video monitoring

Videotaping a person while they are sleeping to record and then analyse any observable disturbances in their sleep.

24

Controlled processes

Actions that require a high level of conscious awareness, attention and mental effort.

25

Selective attention

Attending to a particular stimulus while ignoring others; it requires a high level of awareness.

26

Automatic processes

Actions that require little conscious awareness or mental effort, and do not interfere with performance on their activities.

27

Divided attention

When an individual simultaneously focussed on two more stimuli, or simultaneously undertakes two or more tasks.

28

Hallucination

A sensory experience (eg. Seeing or hearing something) that does not actually exist.

29

Delusion

A belief or thought that is not supported by or connected to reality.

30

Psychoactive drugs

Any class of drug that alters the brains chemistry, which subsequently changes a persons perceptions, thoughts and behaviours.