Biopsych exam 3 (chapter 5.1/5.2)

In electrooculography, how many electrodes are typically used to monitor the movements of one eye? A) 4 B) 8 C) 3 D) 1 E) 6

4

The reason why radioactive 2-DG is useful for revealing the level of activity of neurons in different parts of the brain is that 2-DG A) is absorbed by neurons in relation to their level of activity. B) is metabolized by neurons in relation to their level of activity. C) is not metabolized by neurons. D) both A and C E) both A and B

A & C: is absorbed by neurons in relation to their level of activity is not metabolized by neurons

The signals in the first few milliseconds of the average auditory evoked potential A) always originate next to the scalp electrode. B) are far-field potentials. C) originate in the sensory nuclei of the brain stem. D) all of the above E) both B and C

B & C are far-field potentials originate in the sensory nuclei of the brain stem

Which of the following technique measures changes in magnetic fields on the surface of the brain? A) MRI B) fMRI C) MEG D) EMG E) EEG

MEG

The two most common techniques for producing images of human brain function are PET and functional __________.

MRI

Which of the following procedures is not an adaptation of X-ray photography? A) computed tomography B) MRI C) CT D) angiography E) both A and C

MRI

Which of the following provides the most detailed three-dimensional view of the structure of the living human brain? A) CT B) PET C) angiography D) EEG E) MRI

MRI

which of the following is a method used by cognitive neuroscientists to turn off part of the brain while the effects on cognition and behavior are assessed? A) 2-DG. B) ERP. C) TMS. D) PET. E) EEG.

TMS

The level of 130/70 mmHg is A) indicative of stress. B) the ratio of diastolic to total systolic blood pressure. C) a healthy human blood pressure. D) indicative of hypertension. E) both a and c

a healthy human blood pressure

Electrooculography is A) usually performed with one electrode mounted on each cornea. B) a method of estimating eye movement. C) a method of measuring skin conductance. D) an indirect method of measuring pupil constriction. E) both A and B

a method of estimating eye movement

Penile erection is A) a muscular response. B) an electromyographic response. C) a plethysmographic response. D) a sphygmomanometric response. E) an aberrant response.

a plethysmographic response

which of the following bio-psychologists would be most likely to study cortical ERPs in human volunteers? A) a neuropsychologist B) a psychophysiologist C) a physiological psychologist D) a psychopharmacologist E) a comparative psychologist

a pschophysiologist

The main difference between an average evoked potential (AEP) and a "raw" evoked potential is that A) an AEP is usually unobservable. B) an AEP is an alpha wave. C) a raw evoked potential is often unobservable amidst the random noise of the ongoing EEG signal. D) an AEP is a unit response. E) a raw evoked potential is likely to be larger.

a raw evoked potential is often unobservable admist the random noise of the ongoing EEG signal

If you were startled by a loud noise, there would be an increase in your skin's conductance of electricity. This response is called A) a skin conductance response. B) an EKG. C) a skin conductance level. D) an average evoked potential. E) a P300 wave.

a skin conductance level

Which of the following is a record of a person's heart beat? B) ECG C) EKG D) all of the above E) both A and B

all the above ECG EKG Electrocardiogram

an electroencephalograph is A) a gross measure of the electrical activity of the brain. B) a gross measure of the electrical activity of the cortex. C) a gross measure of the electrical activity of neurons. D) a gross measure of the electrical activity of groups of neurons. E) an EEG machine.

an EEG machine

Which of the following is a contrast X-ray technique? A) angiography B) magnetoencephalography C) positron emission tomography D) structural magnetic resonance imaging E) functional MRI

angiography

unlike brain-imaging techniques, TMS permits the study of ___ between human cortical activity and cognition A) links B) causal relations C) correlations D) neural connections E) communication

causal relations

Which contrast X-ray technique is designed to locate vascular abnormalities in the brains of human patients? A) cerebral angiography B) X-ray photography C) pneumoencephalography D) CT scans E) PET scans

cerebral angiography

MEG records A) the time of particular EEG signals. B) changes in magnetic fields on the surface of the scalp. C) the frequency of particular EEG signals. D) the latency of far-field potentials. E) the P300.

changes in magnetic fields on the surface of the scalp

Hypertension is A) stress. B) caused by excitement. C) chronic high blood pressure. D) chronic low blood pressure. E) a sphygmomanometer.

chronic high blood pressure

The unabbreviated name of the procedure used to record muscle tension is __________.

electromyography

muscle tension is monitored by A) electroencephalography. B) electromyography. C) electrooculography. D) ERPs. E) MEGs.

electromyography

Illustrated here is A) electroencephalography. B) magnetoencephalography. C) electrooculography. D) plethysmography. E) electromyography.

electrooculography

Electrooculography is a technique for monitoring A) penile engorgement. B) cortical activity. C) blood pressure. D) eye movement. E) muscle tension.

eye movement

Which technique records the BOLD signal? A) MRI B) CT C) fMRI D) PET E) MEG

fMRI

The short-latency low-amplitude signals (indicated by the arrow) in this average auditory evoked potential are termed A) the P300. B) the P400. C) the ERP. D) the sensory evoked potential. E) far-field potentials.

far-field potentials

Which method provides structural and functional information about the living human brain on the same image? A) functional MRI B) angiography C) PET D) CT E) EEG

functional MRI

A computed tomography (CT) scan of the human brain is usually presented as a series of eight or nine A) horizontal sections. B) frontal sections. C) coronal sections. D) sagittal sections. E) midsagittal sections.

horizontal sections

The P300 A) is an EEG wave that often occurs after the presentation of a momentary stimulus meaningful to the volunteer. B) is a negative EEG wave. C) is a far-field potential occurring 300 mm from the electrode. D) occurs about 300 seconds prior to a response. E) is a component of the potential evoked by a meaningless click.

is an EEG wave that often occurs after the presentation of a momentary stimulus meaningful to the volunteer.

A technique for disrupting activity of an area of cortex in healthy human volunteers is transcranial __________ stimulation.

magentic

functional MRI requires the injection of radioactive A) water. B) glucose. C) 2-DG. D) oxygen. E) none of the above

none of the above

Components of AEPs recorded in the first few milliseconds after a stimulus are A) almost always auditory. B) almost always visual. C) not usually influenced by the meaning of the stimulus. D) of special interest to cognitive psychologists. E) almost always influenced by the meaning of the stimulus.

not usually influenced by the meaning of the stimulus

Functional MRI generates images of increases to areas of the brain of A) oxygenated blood flow. B) water flow. C) nitric oxide flow. D) alpha waves. E) 2-DG.

oxygenated blood flow

A patient is sometimes injected with radioactive 2-deoxyglucose before A) a CT scan. B) magnetic resonance imaging. C) a contrast X-ray. D) positron emission tomography. E) a sodium amytal test.

positron emission tomography

Positron emission tomography is a valuable research tool because it A) pictures the brain in fine detail. B) involves angiography. C) provides an image of brain function. D) provides an image of brain structure. E) involves low levels of radioactivity.

provides an image of brain function

signal averaging is commonly used in the recording of ERPs because it reduces the magnitude of A) large signals. B) sensory evoked potentials. C) random signals. D) the P300. E) far-field potentials.

random signals

alpha wave EEG activity is associated with? A) high arousal. B) sleep. C) relaxed wakefulness. D) epilepsy. E) evoked potentials.

relaxed wakefulness

In humans, EEG electrodes are usually taped to the __________ .

scalp

Which of the following have traditionally been used by physicians to measure blood pressure? A) sphygmomanometers B) plethysmographs C) oscilloscopes D) electrodes E) ERPs

sphygmomanometers

The SCL and SCR are both influenced by __________ glands.

sweat

Which gland or glands directly influence the SCL and the SCR? A) gonads B) pituitary gland C) sweat glands D) pancreas E) adrenal glands

sweat glands

in human patients, EEG activity is commonly recorded directly from A) muscle. B) the hippocampus. C) the scalp. D) the neocortex. E) the heart.

the scalp

The patient is often injected with radioactive 2-DG before positron emission __________.

tomography