PSY 001 Lecture Notes - Lecture 8: Time Perception, Barbiturate, Chemical Substance

• School: College of The Sequoias
• Department: Psychology (PSY)
• Course: PSY 001
• Professor: Elizabeth

Document Summary

Any chemical substance that alters perceptions and mood. Attention, judgment, memory, time sense, self-control, emotion, or perception. Increase activity in body and nervous system. Decrease activity in body and nervous system. Alcohol: slows reaction times, speech slurs, lowers inhibitions, feelings of invincibility, disrupts processing of recent experiences into long-term memories, blackouts result partly from the suppression of rem sleep, prolonged & excessive drinking can affect cognition (brain shrinking) Opium and its derivatives: morphine; heroin. Lessen pain and anxiety by creating a sense of pleasure: pleasure is short term and another dose may be craved. Tolerance: larger and larger doses are needed, withdrawal symptoms can be extreme, increasing dose can lead to overdose death. Examples: caffeine, nicotine, amphetamines, methamphetamine, cocaine, ecstasy. Rush of euphoria: brain"s supply of dopamine, serotonin, & norepinephrine are depleted, crash 15-30 minutes later as drug wears off. May lead to: emotional disturbances, suspiciousness, convulsions, cardiac arrest.