In the context of the birth process, which of the following is true of electronic fetal monitoring?
A. Its use is restricted to high-risk deliveries.
B. It is very accurate and has a negligible false-positive rate.
C. It is a relatively cheap facility and is provided for all deliveries.
D. It restricts a mother's movements during labor.
Answer: D
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Imagine that a picture of a spoon is briefly flashed in the left visual field of an individual with a severed corpus callosum. At the same time, a picture of a cup is briefly flashed in the right visual field. Based on research with split-brain patients, you could predict that this individual will say,
a. "I didn't see anything.". b. "I saw a spoon resting in a cup.". c. "I saw a spoon.". d. "I saw a cup.".
If the differences in IQ scores among people were entirely a result of genetic factors, you would expect to find that the correlation in IQ scores would be
a. higher for fraternal twins reared together than for identical twins reared apart. b. higher for identical twins reared together than for identical twins reared apart. c. the same for identical twins reared together and for identical twins reared apart. d. lower for identical twins reared together than for identical twins reared apart.
Joan, a neuroscience graduate student, is asked by her laboratory mentor to study the communication of two neurons grown in a petri dish. She is asked to stimulate an action potential in the first neuron, which will send a depolarizing stimulus to the second, “receiving” neuron. However, her mentor would also like her to block the receiving neuron from generating an action potential. How can
Joan accomplish this? a. She must cause the depolarization current in the receiving neuron to drift to the junction where the cell body and the axon meet. b. She must block the process of summation in the receiving neuron. c. She must cause the first neuron to release excitatory neurotransmitters. d. She must remove the myelin from the receiving neuron.
What is the lightest, or most alert, phase associated with the sleep cycle?
a. alpha stage c. stage 2 b. stage 1 d. stage 3