Examlex
A species of bird had an original range covering the entire eastern half of the United States from New England west to the Mississippi and then south to Florida. During a period of glaciation, the eastern part of the population was cut off from the western part for 2000 years. Then the glacier melted and the birdsʹ range was reestablished. During the separation, the western birds evolved a slightly different song and a darker wing color. Ornithologists are now studying this species to determine whether speciation has taken place. What evidence will they look for in their study?
Psychiatrist
A mental health professional who is a medical doctor.
Biological Perspective
The biological perspective looks at psychology in terms of biological processes, structures, and substances and how they influence behavior, thoughts, and emotions.
Drugs
Substances used to treat, prevent, or diagnose illness, or used recreationally to alter mood or consciousness.
Psychodynamic Model
A psychological theory that emphasizes unconscious psychological processes (e.g., desires, thoughts, feelings) and contends that childhood experiences are crucial in shaping adult personality.
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