If you listen to your friend’s story and simultaneously listen to the television, you are using
a. focused attention
b. selective attention
c. divided attention
d. sustained attention
Ans: c
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Lucille, who suffers from depression, is going to a physician's office. The doctor places a wire coil on the left side of her forehead, creating a field that disrupts brain activity. Lucille is being treated with __________.
A. transcranial magnetic stimulation (TMS) B. electroconvulsive therapy (ECT) C. functional magnetic resonance imaging (fMRI) D. single-photo emission computed tomography (SPECT)
LuAnne is described by her teacher as "a shy and anxious daydreamer who cannot keep on task and fails to pay attention to details. It takes LuAnne twice as long to complete worksheets as other students." If LuAnne has a childhood disorder, it is probably ____
a. ADHD, predominantly inattentive type c. oppositional defiant disorder b. ADHD, combined type d. conduct disorder
Margarette has an irrational fear of entering tunnels. As a result, she experiences a high level of personal distress. Jason is highly disruptive in school and does not experience personal distress, but his behavior is still considered abnormal because
a. it produces a high level of distress for others around him. b. his parents experience the same behaviors outside of school. c. his actions occur in public. d. none of these would be reasons for identifying his behavior as abnormal.
What causes potassium ions to leave the axon just after the peak of the action potential?
a. a continuing concentration gradient and the opening of the potassium gates b. an increase in the concentration gradient across the membrane c. an increased tendency of the sodium-potassium pump to push potassium out d. binding of potassium ions to proteins that leave at this time