Differentiate between a benign and a malignant tumor.
What will be an ideal response?
A benign tumor is harmless; it is encapsulated and has a distinct border that separates the tumor from surrounding tissue. A malignant tumor has no distinct border; it can infiltrate surrounding tissue, making it difficult to remove from the brain.
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Token economies have been applied in therapeutic settings. Which of the following is an application described in your text.
A. Patients suffering from severe depression were given tokens for sharing positive, uplifting thoughts; with the tokens, they could purchase minutes of free individual therapy. B. Patients with extreme phobias earned points when facing the feared object; with the points, they could purchase time for stress relief meditation. C. Anorexic patients were given points at weigh-in; with the points, they could purchase activity rewards. D. Schizophrenic patients in residential treatment were given points for taking their prescribed medications; with the points, they could purchase entertainment rewards.
One technique in psychological experiments is to keep the experimenter from knowing the research hypothesis or the experimental condition of the participants currently being tested. This technique helps to prevent the problem of
a. demand characteristics. b. experimenter bias. c. placebo effects. d. carryover effects.
Some of the physical and psychological symptoms associated with nicotine withdrawal are:
a. hypersomnia, irritability, and decreased appetite b. vomiting, trembling, and heart palpitations c. increased blood pressure and reduced immune response d. insomnia, irritability, and increased appetite
Temperature regulation is managed by a a. single system in the hypothalamus
b. single system in the spinal cord. c. hierarchy of systems extending from the spinal cord to the hypothalamus. d. hierarchy of systems extending from the medulla to the spinal cord.