- Which neuroimaging technique involves injecting an isotope of oxygen into the bloodstream and using it to measure regional cerebral blood flow?Select one:a. fMRIb. PETc. CTd. EEG
- normally when blood carbon dioxide content increases respiration
- The leading genetic cause of intellectual disability is ______.
- The consensus among modern researchers is that the function of sleep is ______.
- The best neuroimaging method for visualizing the white and gray matter is computed tomography (CT).Select one:TrueFalse
- Which of the following neuroimaging techniques involves manipulating the orientation of hydrogen atoms?Select one:a. MRI (magnetic resonance imaging)b. PET (positron emission tomography)c. MEG (magnetoencephalography)d. ERP (event-related potential)
- Which of the following imaging techniques can be thought of as a three-dimensional X-ray?Select one:a. MRI (magnetic resonance imaging)b. CT (computed tomography)c. fMRI (functional magnetic resonance imaging)d. PET (positron emission tomography)
- You have isolated a neuron in the occipital lobes that you believe is responsible for processing information about color. What type of neurophysiological technique would allow you to assess this hypothesis in a living animal?Select one:a. single-cell recordingb. histologyc. electrical stimulationd. Golgi stain
- In neurologically intact people, we can restrict information to only the left hemisphere by presenting it visually in the right visual field.Select one:TrueFalse
- Which of the following cells devour and remove damaged brain cells?Select one:a. microgliab. oligodendrocytesc. Schwann cellsd. astrocytes
- Studies of the production of facial expressions suggest that although ________ can generate spontaneous facial expressions, ________ can generate voluntary facial expressions.Select one:a. only the left hemisphere ; both hemispheresb. only the right hemisphere ; both hemispheresc. both hemispheres ; only the left hemisphered. both hemispheres ; only the right hemisphere
- Two main types of projections extend from the cell body of a neuron. ________ receive inputs from other neurons, while ________ send information to other neurons.Select one:a. synapses ; gliab. axons ; dendritesc. glia ; synapsesd. dendrites ; axons
- A small object, such as a key, is placed in the right hand of a split-brain patient who has her eyes closed. Assuming that this person has left-hemisphere language dominance, which of the following best describes her ability to report information about the object based on how it feels?Select one:a. She will be able to name and describe it verbally.b. She will not be able to name it verbally.c. She will be able to write out the object's name using her left hand.d. She will not be able to direct focused attention to the object.
- When performing a single-cell recording, researchers typically carefully insert a thin electrode through the cell membrane into the interior of a neuron.Select one:TrueFalse
- Demyelinating diseases such as multiple sclerosis disrupt normal neural communication bySelect one:a. diminishing the activity of the sodium-potassium pumps that usually maintain the resting potential of neurons.b. causing deterioration of the fatty substance that normally coats and insulates axons.c. destroying receptors on postsynaptic cells so that neurotransmitters cannot bind normally.d. creating lesions in the blood-brain barrier that allow toxic substances to enter the brain from the bloodstream.
- The small regions in a three-dimensional grid, approximately 5 to 10 cubic millimeters in volume, that neuroimagers use to map the brain are known asSelect one:a. posners.b. sternbergs.c. voxels.d. pixels.
- Visual information that is presented briefly to the ________ visual field is processed first by the left half of each retina and then by the ________ hemisphere of the brain.Select one:a. right ; rightb. right ; leftc. left ; rightd. left ; left
- If the sum of the excitatory postsynaptic potentials (EPSPs) causes a postsynaptic neuron to reach its threshold, then the postsynaptic neuron will generate an action potential.Select one:TrueFalse
- Brain asymmetries are restricted to the cerebral cortex and are not found in subcortical structures.Select one:TrueFalse
- Functional magnetic resonance imaging (fMRI) is based on a measurement ofSelect one:a. magnetic fields emanating from the surface of the brain.b. the distribution of dye in the arteries and veins of the brain.c. virtual lesions following intense magnetic stimulation of the brain.d. ratios of oxygenated to deoxygenated hemoglobin in the brain.