• Summary
  • Contents
  • Subject index

Via 100 entries, 21st Century Psychology: A Reference Handbook highlights the most important topics, issues, questions, and debates any student obtaining a degree in the field of psychology ought to have mastered for effectiveness in the 21st century. This two-volume reference resource, available both in print and online, provides an authoritative source to serve students’ research needs with more detailed information than encyclopedia entries but without the jargon, detail, or density found in a typical journal article or a research handbook chapter. Students will find chapters contained within these volumes useful as aids toward starting research for papers, presentations, or a senior thesis, assisting in deciding on areas for elective coursework or directions for graduate studies, or orienting themselves toward potential career directions in psychology.

Drugs and Behavior
Drugs and behavior

A drug is a chemical substance produced exogenously (outside of the body) that, when taken into the body, changes normal body functions. Psychologists are very interested in psychoactive drugs that change central nervous system (CNS; brain and spinal cord) activity, and thereby affect perception, thought, emotion, and behavior. Although people use many psychoactive drugs for acceptable medicinal reasons (see Chapter 18), this chapter focuses on those psychoactive drugs that people use primarily for recreational, nonmedicinal reasons (e.g., to feel good, be more alert, alter or avoid reality). An adult drinking alcohol to relax or smoking cigarettes to stop the jitters are examples of recreational use of licit (legal) drugs in this country, and smoking crack to feel euphoric or injecting ...

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