PSYCH101 Lecture : September 30th, Eating Disorders/Brain Function The brain and its functions espeically when dealing with disorders
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Anorexia nervosa: a disorder in which a normal weight person diets and becomes s ignificantly underweight (15% or more), yet still feels fat and continues to sta rve. Bulimia: a disorder in which a person has episodes of overeating, usually of hig h calorie foods, followed by (cid:0)purging(cid:0) (vomiting, laxative, fasting, over-exercising. Sensation: the detection of simple properties of stimuli; reception and represen tation of stimulus energies from the environment. Perception: the processing of meaningful objects and events in the world; organi zing and interpreting sensory information. >two aspects of the nervous systems that recognizes these senses. Psychophysics: the systematic study of the relation between the physical charact eristics of stimuli and the sensations/experiences that they produce. Absolute threshold: the minimum value of a stimulus that can be detected 50% of the time. Difference threshold: the minimum detectable difference between two stimuli (a. k.