Usian is failing in school, and scores well below grade-level on achievement tests. When he takes the Wechsler Intelligence Scale for Children (WISC), his intelligence quotient (IQ) score is in the mid 60s. Usian is classified as:
-an underachiever.
-learning disabled.
-dyslexic.
intellectually disabled.
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A well-known local herbalist sells the neurotransmitter gamma-aminobutyric acid (GABA) as “the body’s natural tranquilizer,” stating that it helps to calm the central nervous system and prevent anxiety and stress-related messages from reaching the motor centers of the brain. This portrayal reflects GABA’s ____
a. inhibitory effect on brain activity b. depolarizing properties c. lack of hyperpolarization d. excitatory effect on brain activity
When levels of estrogen in the bloodstream increase, performance on:
a. verbal tasks generally declines b. spatial tasks generally improves c. verbal tasks generally improves d. spatial tasks generally declines
The part of the brain that directly allows you to contemplate the answer to this question is the:
a. hindbrain c. forebrain b. midbrain d. cerebellum
Which of the following is true regarding the role of taste and texture in eating habits?
A) Which foods we eat are determined much more by their nutritional value than their tastes and textures. B) Taste and texture influence our enjoyment of food, but not our overall eating habits. C) Paradoxically, we eat smaller portions of foods whose taste and textures we prefer. D) Taste and texture play a large role in determining which foods we eat and in what amounts.