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M bassil psyc 202 the nature of dreams why do we

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Unformatted text preview: ntent content Unconscious needs can be fulfilled and Unconscious because are disguised within the dream, sleeper sleeper does not become anxious. M. Bassil PSYC 202 The Nature of Dreams Why do we Dream? Activation-Synthesis Theory (physiological theory of dreaming) Synthesis (physiological Dreams do not serve any particular function; they are Dreams merely merely a by-product of REM neural activity During During REM, brain stem bombards higher brain centers brain bombards cerebral cortex continues its job by creating dream that continues best fits particular pattern of neural activity (brain tries to make sense of bizarre neural activity according according to our personal experiences) BUT BUT What about NREM dreaming? M. Bassil PSYC 202 24 Create PDF files without this message by purchasing novaPDF printer (http://www.novapdf.com) 11/4/2009 The Nature of Dreams Why do we Dream? Cognitive Theories: • Problem-solving dream models: because dreams are not because constrained by reality, they can help find creative solutions to our problems & ongoing concerns BUT: BUT: many do not rotate around problems or solve a problem; merely generate insight later Cognitive-process dream theories: dreaming & waking thoughts thoughts are produced by same mental systems in brain Dreams Dreams appear bizarre because content shifts rapidly similar to the shifts in stream of consciousness while awake M. Bassil PSYC 202 Daydreams & Waking Fantasies Daydreams are part of waking consciousness are during during boredom & allow a range of emotions Fantasy-prone personality: live in a vivid, rich live fantasy fantasy world that they control most are female; can experience all senses Daydreams Daydreams involve more visual imagery, but are less vivid, emotional, & bizarre than nighttime dreams dreams BUT there is surprising similarity (could (could dreams be an extension of day day time mental activities?) M. M. Bassil PSYC 202 25 Create PDF files without this message by purchasing novaPDF printer (http://www.novapdf.com) 11/4/2009 Altering Altering of consciousness thru the influence of: brain chemistry + psychological, environmental, environmental, & cultural factors M. Bassil PSYC 202 Drugs & the Brain Drugs Drugs enter the bloodstream & are carried thru brain brain by: Capillaries (small blood vessels) These contain blood-brain barriers that screen These blood brain out out many foreign substances letting vital letting nutrients pass through in order for neurons to function function BUT BUT some drugs pass through ► alter alter consciousness consciousness by facilitating or inhibiting facilitating synaptic synaptic transmission M. Bassil PSYC 202 26 Create PDF files without this message by purchasing novaPDF printer (http://www.novapdf.com) 11/4/2009 Drugs & the Brain How Drugs Facilitate Synaptic Transmission: Agonist drugs: increase the activity of increase neurotransmitter neurotransmitter • enhance neuron’s ability to synthesize, store or enhance release release n...
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