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Midterm

Chapter 3 psyche for midterm 2 textbook summary.docx

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Department
Psychology
Course
PSY1101
Professor
A L L
Semester
Fall

Description
Chapter 3 consciousness and the twotrack mindThe brain and consciousnessCognitive neuroscience the interdisciplinary study of the brain activity linked with our mental processes is taking the first small step by relating specific brain states to conscious experiences Brain and the mind may still be active ex tennis imagine Dual processing many cognitive neuroscience discoveries tell us of a particular brain region that becomes active with a particular conscious experience Perception memory thinking language and attitudes all operate on two levels a conscious deliberate high road and an unconscious automatic low road the principle that information is often simultaneously processed on separate conscious and unconscious tracks The twotrack mind minds two levels Hollow face illusion people will mistakenly perceive the inside of a mask as a protruding face Selective attention the focusing of conscious awareness on a particular stimulus how much information do we consciously attend to at oncecocktail party effect is your ability to attend to only one voice among many let another voice speak your name and your cognitive radar operating on the minds other track will instantly bring that voice into consciousness Selective attention and accidents cell phone use and car accidents Selective inattention 3 black 3 white pass Click Cant see the man who has umbrella Inattentional blindness Gorilla Failed to see it failing to see visible objects when our attention is directed elsewhere In other experiment people have also exhibited a blindness to change After a brief visual interruption a big coke bottle may disappear a railing may rise clothing color may change it but more often than not viewers wont notice This form of inattentional blindness is change blindness Ex failing to notice changes in the environmentChange deafness can also occur 40 percent of people focused on repeating a list of sometimes challenging words failed to notice a change in the person speaking Choice blindness 120 volunteers two female faces for 2 to 5 or more seconds and asked them which face was more attractive The researchers then put the photos face down and handed viewers the one they had chosen inviting them to explain their choice But on 3 of 15 occasions the tricky researchers used sleightofhand to switch the photosshowing viewers the face they had not chosen Sleep and DreamBiological rhythms and sleep circadian rhythm biological clock bright light in the morning tweaks the circadian clock by activating lightsensitive retinal proteins These proteins control the circadian clock by triggering signals to the brains suprachiasmatic nucleus SCNa pair of grainofricesized 20000cell clusters in the hypothalamus The SCN does its job in part by causing the brains pineal gland to decrease its production of the sleepinducing hormone melatonin in the morning or increase it in the evening Sleep stages what is the biological rhythm of our sleepREM sleep Rapid eye movement Recurring sleep stage during which vivid dreams
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