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Lecture

October 21, 2013 Modules 7,8,9.docx

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Department
Psychology
Course Code
PSYC 1010
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all

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Psychology 1010 – Consciousness Modules 7,8,9,10 Monday October 21, 2013 Module 7 -Consciousness: moment to moment awareness of ourselves and environment • Subjective & Private: others cannot know our reality (and vice versa) • Dynamic: ever changing • Self-reflective -Forms of Consciousness; • Spontaneously: Daydreaming, drowsiness, dreaming • Physiological induced: Hallucinations, orgasm, food and oxygen starvation • Psychological induced: sensory deprivation hypnosis, meditation -Psychology was once defined as the description and explanation of states of consciousness -Finding: some rare unconscious patients have brain responses to conversation (people in a coma) -Implication: don’t judge a book by its cover when it comes to consciousness -Mind body Problem: • Does the mind and body exist separately from the body? o Dualist believe so o Descartes: mind is non-physical and immortal, body is physical and mortal o Spinoza: mind and brain are two different levels of explanation for the same thing o Reductionism: mind based concepts are simply biological constructs -Measuring Consciousness: • Self-reports: direct, but not verifiable • Physiological: EEG. Are objective, but cannot indicate what person is experiencing subjectively • Behavioural: performance on tasks, need to infer state of mind -Rouge Test: • First used in a study in 1972 • Researches put red lipstick on a babies nose and placed them in front of the mirror • Babies point at their reflection (before 18 months) o They don’t realize the reflection is their own o After 18 months they start to realize it’s their nose in the mirror and try to wipe it off -Consciousness in animals? Some animals can become aware of themselves in mirrors as well -Cognitive Unconscious • Controlled o Effortful, voluntary use of attention, difficult or new tasks, slower but more flexible than automatic • Automatic o Little or no conscious processing, routine, well learned tasks, fast but can inhibit finding new solutions, facilitates divided attention -Dual track mind • Conscious “high” track: our minds take deliberate actions we know we are doing ex. Problem solving, naming an object, defining a word • Unconscious “low” track: our minds performance automatic actions ,often without being aware of them Ex. Walking, acquiring phobia, o Not having to think about everything we do all at once is a good thing • Unusual consequences of having a dual track mind o Blindsight: a woman was unable to use her eyes to report what was in front of her, but she was able to use her eyes to put mail in slots  High Track: Visual perception track  Low Track: Visual action track o selective attention: we have a skill to choose what is important and what can be ignored, we can focus on a conversation while there is other conversations going on around you, although when your name is called it draws your attention (what we focus on is what we notice) o selective Inattention: what we are not focused on, what we do not notice, refers to our notice part of our environment -Inattention blindness: we miss seeing what other may think as obvious -Divided Attention: How many things do you do at once, we split our attention -Emotional Unconscious: are influenced by events we are unaware of, mood can be affected by positive or negative words subliminally presented -Modular Mind: mind consists of separate interacting information processing modules (sensation, perception, memory, problem solving, and emotion). Process information in parallel -3 levels of consciousness: • Conscious: mental events we are currently aware of (reading this slide) • Preconscious: outside of current awareness; easily recalled (what u had for supper last night) • Unconscious: not brought into conscious awareness under ordinary circumstances (tied to anxiety, pain) -Sleep as a state of consciousness, when sleeping are we truly unconscious and dead to the world? • We move around in our sleep, however we know where the edge of our bed is • We sometimes incorporate real world voices noises into our dreams • Some noises (own babies cry) can wake you up Module 8 -Circadian Rhythms: rhythmic daily cycles • Controlled in the mid brain • Highest alertness is around 4-7pm • Do you do better in morning or evening classes? o Morning people tend to do better in the morning and at night • Disruptions of circadian rhythms such as jet lag, night-shift work, seasonal affective disorder • Cycle through stages roughly every 90 minutes o Beta waves occur when awake and alert o Alpha waves occur when relaxed and drowsy -Body temperature changes (day higher than night) -Stages of Sleep: • Stage 1: light sleep, lasts a few minutes, may experience “body jerks”, theta waves • Stage 2: sleep deepens, muscles more relaxed, harder to awaken (very hard to wake people from), sleep spindles (1-2 second bursts of rapid brain activity) • St
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