The Use of Marihuana A Psychological and Physiological Inquiry [Paperback]

1 Background and Experimental Design.- 1. Setting.- 2. Research Paradigm.- 2 The Subjects.- 1. Recruitment of Subjects.- 2. Characteristics of the Subject Groups.- 3 Experimental Analysis of Marihuana Acquisition and Use.- 1. Method.- 2. Results.- 2.1. Operant Data.- 2.2. Marihuana Consumption.- 2.3. Other Reinforcements.- 3. Discussion.- 4 Group Behavior: Patterns of Smoking.- 1. Method.- 2. Results.- 2.1. The Smoking Procedure.- 2.2. Smoking in Groups.- 2.3. Affiliation Structures and Role Differentiation.- 2.4. Activities and Communication during Smoking.- 2.5. Content and Quality of Communication.- 3. Discussion.- 5 Group Behavior: Verbal Interaction.- 1. Methods and Procedure.- 2. Results.- 2.1. Overall Effect of Marihuana on Verbal Interaction.- 2.2. Specific Effects of Marihuana on Verbal Interaction and Laughter.- 2.3. Effect of Marihuana on Opinion Change after Group Discussion.- 3. Discussion.- 4. Summary.- 6 Group Behavior: Hostility and Aggression.- 1. Methods.- 1.1. Assessment of Hostile Inner States.- 1.2. Interpersonal Perception of Hostility.- 1.3. Assessment of Verbal Interpersonal Hostility.- 2. Results.- 2.1. Hostility as an Inner Affective State.- 2.2. Perception and Expression of Hostility in Others.- 2.3. Verbal Interaction Hostility.- 3. Discussion.- 7 Group Behavior: Problem Solving Efficiency.- 1. Method and Procedure.- 2. Results.- 3. Discussion.- 8 Memory and Time Estimation.- 1. Method.- 1.1. Memory.- 1.2. Time Estimation.- 2. Results.- 2.1. Short-Term Memory.- 2.2. Improvement with Practice.- 2.3. Acute Effects of Marihuana.- 2.4. No Changes during Drug Period.- 2.5. Volitional Control of Effects.- 2.6. Time Estimation.- 2.7. Pre-Drug Estimates.- 2.8. Overestimate vs. Underestimate.- 2.9. Acute Effects of Marihuana.- 2.10. Tolerance.- 2.11. No Volitional Control of Effects.- 2.12. Changes in Time Estimates during Drug Period.- 2.13. Net Effects on Accuracy of Time Estimates: Heavy vs. Casual Users.- 3. Discussion.- 9 Cognitive Effects ofl$