PSC 1 Lecture Notes - Lecture 8: The Cocktail Party, Donald Broadbent, Inattentional Blindness
PSC 001 – Lecture 8 – Consciousness Day 1
● Consciousness Is a Subjective Experience
○ Cosiousess: oe’s sujetie experiee of the orld, resultig fro rai
activity
○ The brain and the mind are inseparable.
○ Each of us experiences consciousness personally.
○ We cannot know if two people experience the world in exactly the same way.
○ Example
● Conscious Awareness Involves Attention
○ At any one time, each person can be conscious of a limited number of things.
■ Automatic processing – tasks that are so well learned that they require
little attention
■ Controlled processing – difficult or unfamiliar tasks that require much
attention
○ The Cocktail Party Phenomenon
○ Selective Attention
■ Donald Broadbent developed filter theory to explain the selective nature
of attention.
1. In this model, attention is like a gate that opens for important
information and closes for irrelevant information.
2. Some stimuli demand attention and virtually shut off the ability to
attend to anything else.
3. Decisions about what to attend to are made early in the
perceptual process.
○ Inattentional/Change Blindness
■ Inattentional blindness: a failure to otie soethig oious i oe’s
environment
■ Change blindness: a failure to otie large hages i oe’s eiroet
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Document Summary
Psc 001 lecture 8 consciousness day 1. Co(cid:374)s(cid:272)ious(cid:374)ess: o(cid:374)e"s su(cid:271)je(cid:272)ti(cid:448)e experie(cid:374)(cid:272)e of the (cid:449)orld, resulti(cid:374)g fro(cid:373) (cid:271)rai(cid:374) activity. The brain and the mind are inseparable. We cannot know if two people experience the world in exactly the same way. At any one time, each person can be conscious of a limited number of things. Automatic processing tasks that are so well learned that they require little attention. Controlled processing difficult or unfamiliar tasks that require much attention. Inattentional blindness: a failure to (cid:374)oti(cid:272)e so(cid:373)ethi(cid:374)g o(cid:271)(cid:448)ious i(cid:374) o(cid:374)e"s environment. Change blindness: a failure to (cid:374)oti(cid:272)e large (cid:272)ha(cid:374)ges i(cid:374) o(cid:374)e"s e(cid:374)(cid:448)iro(cid:374)(cid:373)e(cid:374)t. Thought and behavior can be influenced by stimuli that are not experienced at a conscious level. Subliminal perception: the processing of information by sensory systems without conscious awareness. Potentially altered by: hypnosis, meditation, and immersion in an action (i. e. , flow) Hypnosis: a social interaction during which a person, responding to suggestions, experiences changes in memory, perception, or voluntary action.
