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Consciousness and the Two-Track Mind. Waking Consciousness. Consciousness our awareness of ourselves and our environments. Waking Consciousness. Selective Attention focusing of consciousness on a particular stimulus

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Consciousness and the Two-Track Mind

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Consciousness and the two track mind l.jpg

Consciousness and the Two-Track Mind


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Waking Consciousness

  • Consciousness

    • our awareness of ourselves and our environments


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Waking Consciousness

  • Selective Attention

    • focusing of consciousness on a particular stimulus

    • as in the cocktail party effect (the ability to attend selectively to only one voice among many).

  • At the level of conscious awareness, whatever has your attention pretty much has your undivided attention.

  • Note the “change blindness” experiment on page 205 – most people did not notice when the person giving them directions changed to another person.


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Forms of Consciousness

Consciousness, modern psychologists believe, is an awareness of ourselves and our environment.

Bill Ling/ Digital Vision/ Getty Images

Stuart Franklin/ Magnum Photos

AP Photo/ Ricardo Mazalan

Christine Brune


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Inattentional Blindness

Inattentional blindness refers to the inability to see an object or a person in our midst. Simons & Chabris (1999) showed that half of the observers failed to see the gorilla-suited assistant in a ball passing game.

Daniel Simons, University of Illinois


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Change Blindness

Change blindness is a form of inattentional blindness in which two-thirds of individuals giving directions failed to notice a change in the individual asking for directions.

© 1998 Psychonomic Society Inc. Image provided courtesy of Daniel J. Simmons.


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Sleep and Dreams

  • Biological Rhythms

    • periodic physiological fluctuations

  • Circadian Rhythm

    • the biological clock

    • regular bodily rhythms, such as of wakefulness and body temperature, that occur on a 24-hour cycle

    • Bright light helps reset our biological clocks


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