Question 1

Psychiatrist Daniel Langleben and his colleagues have used fMRI technology to tell if a person is lying.When a person was lying,the
A) front of the brain became more active.
B) back of the brain became more active.
C) brainstem became less active.
D) entire brain became less active.

Accepted Answer

Langleben and his colleagues found that the front of the brain (particularly the prefrontal cortex) becomes more active when a person is lying. This area of the brain is involved in decision-making, planning, and other complex cognitive processes, which are necessary for creating and maintaining a lie.

Question 2

A new,improved brain imaging technique for measuring glucose metabolism of the brain is called the
A) MANSCAN.
B) PET scan.
C) MRI.
D) CT scan.

Accepted Answer

PET scan (Positron Emission Tomography) is the most accurate technique for measuring glucose metabolism in the brain. It involves injecting a small amount of radioactive material into the patient's bloodstream and then scanning the brain to see how much of this material is absorbed by different regions of the brain. This provides a highly detailed picture of the brain's metabolic activity, which can be used to diagnose neurological disorders and monitor the effects of treatments. The other options (A, C, and D) are imaging techniques that provide different types of information, but are not as specific for measuring glucose metabolism.

Question 3

Anthony was a subject in a study in which the glucose in his brain was marked with a radioactive substance.Then the detectors identified the especially active brain areas.Anthony participated in a study that employed a(n)
A) EEG.
B) MRI.
C) PPRC.
D) PET.

Accepted Answer

The use of a radioactive substance to mark glucose in the brain and the detection of the active brain areas through detectors is a description of a positron emission tomography (PET) scan. EEG measures electrical activity in the brain, MRI uses magnetic fields to create images of the brain, and PPRC is not a commonly-used neuroscience term or technique.

Question 4

Greg is participating in a sleep lab experiment.Electrodes are affixed to his scalp to measure the beta,alpha,theta,and delta waves Greg exhibits as he goes through the various stages of sleep.What technique is being utilized?
A) EEG
B) MRI
C) PET scan
D) CT scan

Accepted Answer

EEG stands for electroencephalogram, which is a technique that involves affixing electrodes to the scalp to measure brain activity and the different types of brain waves. This technique is commonly used in sleep studies to monitor the stages of sleep a person goes through. MRI, PET scan, and CT scan are imaging techniques that don't involve monitoring brain waves.

Question 5

Psychiatrist Daniel Langleben and his colleagues have used a new brain technique to tell if a person is lying,with the front of the brain being more active when a person is lying rather than telling the truth.This technology is the
A) CT scan.
B) MRI scan.
C) EEG.
D) fMRI.

Accepted Answer

The article mentions that psychiatrist Daniel Langleben and his colleagues used a new brain technique to identify if a person is lying, with the front of the brain being more active when lying rather than telling the truth. This technique is likely fMRI (functional Magnetic Resonance Imaging), which is capable of detecting changes in neural activity and blood flow in specific regions of the brain. CT and MRI scans are imaging techniques that primarily provide structural information, while EEG measures electrical activity in the brain and is unlikely to be the technique used in this study.

Question 6

According to Haier's PET scan research,persons who do well on difficult reasoning tests have brains that
A) are the most active and consume the most glucose.
B) consume the least glucose.
C) have the largest corpus callosums.
D) are the easiest to study using EEGs.

Accepted Answer

According to Haier's PET scan research, persons who do well on difficult reasoning tests consume the least glucose. This suggests that their brains are more efficient and effective in using energy to perform complex cognitive tasks.

Question 7

Which technique provides detailed images of activity both near the surface and below the surface of the brain by detecting the subatomic particles emitted by weakly radioactive glucose as it is consumed by the brain?
A) MANSCAN
B) PET scan
C) MRI
D) CT scan

Accepted Answer

The technique described is a PET scan (Positron Emission Tomography). It involves injecting weakly radioactive glucose into the bloodstream and detecting the subatomic particles emitted as it is consumed by the brain. This provides detailed images of activity both near the surface and below the surface of the brain. MANSCAN, MRI, and CT scans use different techniques and are not best suited for this purpose.

Question 8

Haier believes his research shows that higher intellectual performances are related to
A) greater brain efficiency.
B) having larger corpus callosums.
C) having "harder working" brains.
D) all of these.

Accepted Answer

Haier's research suggests that higher intellectual performances are related to greater brain efficiency, meaning the brain uses less energy to perform tasks effectively.

Question 9

Brain wave activity during sleep,daydreaming,hypnosis,and other mental states is likely to be studied using a(n)
A) CT scan.
B) MRI scan.
C) electroencephalograph.
D) implanted microelectrode.

Accepted Answer

Electroencephalograph (EEG) is the most commonly used method for studying brain wave activity during sleep, daydreaming, hypnosis, and other mental states. EEG records the electrical activity of the brain using electrodes attached to the scalp, providing a measure of brain wave patterns over time. CT and MRI scans are useful for imaging brain structures, while implanted microelectrodes are typically used for recording individual neuron activity, which is not necessary for studying brain wave patterns during mental states.

Question 10

Humans are superior to all other animals in
A) intelligence.
B) sensory sensitivity.
C) speed and strength.
D) all of these skills.

Accepted Answer

While humans may not have the same level of sensory sensitivity or speed and strength as some other animals, our intelligence is unmatched in the animal kingdom. This has allowed us to create advanced technology, build complex societies, and dominate the planet in a way that no other species has been able to do.

Question 11

Research using PET scans of human brains indicates that
A) the size of the midbrain connections is the most important feature for intelligence.
B) higher scoring test takers used more glucose.
C) lower scoring test takers used more glucose.
D) brain activity is not related to problem-solving, but is related to one's emotional levels.

Accepted Answer

Research using PET scans has shown that lower scoring test takers tend to use more glucose, indicating less efficient brain activity compared to higher scoring individuals who use less glucose.

Question 12

Martina has what appears to be a seizure.To verify whether Martina has epilepsy,her doctor affixes small disk-shaped mental plates to Martina's scalp in order to obtain a recording of her brain waves.What technique is being utilized?
A) EEG
B) MRI
C) PET scan
D) CT scan

Accepted Answer

The technique being utilized is Electroencephalography (EEG), which involves affixing small disk-shaped metal plates to the scalp to obtain a recording of brain waves. EEG is commonly used to diagnose epilepsy, as well as other neurological conditions. MRI, PET scans and CT scans are imaging techniques that provide detailed images of the brain's structures, but do not directly measure brain activity like EEG does.

Question 13

Regarding the technology used to study the brain,which of the following statements is FALSE?
A) Both PET scans and functional MRIs provide images of activity throughout the brain.
B) Experimentally, fMRI images have been used to tell if a person is lying.
C) PET and fMRI brain scans show that most people use only 10 percent of their brain capacity.
D) PET scans suggest that different patterns of brain activity accompany major psychological disorders, such as depression or schizophrenia.

Accepted Answer

PET and fMRI brain scans do not suggest that most people use only 10 percent of their brain capacity. This is a common myth that has been debunked by neuroscience research. Both PET and fMRI scans provide images of brain activity, but they do not support this myth.

Question 14

Different patterns of brain activity have been found to accompany major psychological disorders,such as depression or schizophrenia,according to studies conducted using which brain tool?
A) MRI.
B) CT scan.
C) PET scan.
D) ESB.

Accepted Answer

PET scans (Positron Emission Tomography) use a radioactive tracer to monitor brain activity by measuring changes in blood flow and glucose metabolism. Studies have used PET scans to identify different patterns of brain activity associated with major psychological disorders like depression and schizophrenia. MRI (Magnetic Resonance Imaging) and CT scans (Computed Tomography) can provide detailed images of brain structure, but do not measure brain activity in the same way as PET scans. ESB (Electrical Stimulation of the Brain) is a technique used in neurosurgery, but is not commonly used for diagnostic purposes in psychological disorders.

Question 15

Research using PET scans of human brains indicates that
A) most people use only ten percent of their brain capacity.
B) higher scoring test takers use more glucose during problem-solving.
C) all parts of the brain are active during waking hours.
D) all of these statements are true.

Accepted Answer

PET scans show that all parts of the brain are active during waking hours, debunking the myth that we only use a small percentage of our brain.

Question 16

A PET scan detects which of the following that are emitted by glucose as it is consumed by the brain cells?
A) potassium
B) radioactive iodine
C) electrons
D) positrons

Accepted Answer

A PET (Positron Emission Tomography) scan detects positrons emitted by glucose as it is consumed by brain cells. When the radioactive tracer (often fluorodeoxyglucose or FDG) is injected into the body, it emits positrons that collide with electrons in the brain, creating gamma rays that can be detected by the PET scanner. This allows for a detailed image of metabolic activity in the brain to be created.

Question 17

Which species of animals have the largest brains?
A) amphibians
B) reptiles
C) birds
D) mammals

Accepted Answer

Mammals have the largest brain size on average, with some species like the sperm whale and elephant having brains weighing over 5kg. In comparison, birds have relatively large brains for their body size, but still smaller than most mammals. Reptiles and amphibians have much smaller brains in proportion to their body size.

Question 18

Eventually,fMRI may help us to distinguish between lies and confabulations,which are
A) unbelievable statements that happen to be true.
B) half-truths.
C) false statements the person believes to be true.
D) false statements made with the intention to deceive.

Accepted Answer

Confabulations are false statements that a person believes to be true, often due to memory disturbances, unlike lies which are false statements made with the intention to deceive.

Question 19

A PET scan records the amount of which radioactive substance used by brain cells?
A) potassium
B) iodine
C) glucose
D) sodium

Accepted Answer

A PET scan records the amount of radioactive glucose used by brain cells. This allows doctors to see which areas of the brain are active and to detect abnormalities.

Question 20

Which of the following gives both a three-dimensional structural view of the brain as well as making brain activity visible?
A) CT scan
B) MRI scan
C) EEG
D) fMRI

Accepted Answer

fMRI (functional magnetic resonance imaging) gives both a three-dimensional structural view of the brain and also makes brain activity visible by measuring changes in blood flow. CT scans and MRI scans provide three-dimensional structural views of the brain but do not measure brain activity. EEG (electroencephalography) measures brain activity but does not provide a three-dimensional view of the brain.

Quiz 2: A: Brain and Behavior

Psychiatrist Daniel Langleben and his colleagues have used fMRI technology to tell if a person is lying.When a person was lying,the

A new,improved brain imaging technique for measuring glucose metabolism of the brain is called the

Anthony was a subject in a study in which the glucose in his brain was marked with a radioactive substance.Then the detectors identified the especially active brain areas.Anthony participated in a study that employed a(n)

Greg is participating in a sleep lab experiment.Electrodes are affixed to his scalp to measure the beta,alpha,theta,and delta waves Greg exhibits as he goes through the various stages of sleep.What technique is being utilized?

Psychiatrist Daniel Langleben and his colleagues have used a new brain technique to tell if a person is lying,with the front of the brain being more active when a person is lying rather than telling the truth.This technology is the

According to Haier's PET scan research,persons who do well on difficult reasoning tests have brains that

Which technique provides detailed images of activity both near the surface and below the surface of the brain by detecting the subatomic particles emitted by weakly radioactive glucose as it is consumed by the brain?

Haier believes his research shows that higher intellectual performances are related to

Brain wave activity during sleep,daydreaming,hypnosis,and other mental states is likely to be studied using a(n)

Humans are superior to all other animals in

Research using PET scans of human brains indicates that

Martina has what appears to be a seizure.To verify whether Martina has epilepsy,her doctor affixes small disk-shaped mental plates to Martina's scalp in order to obtain a recording of her brain waves.What technique is being utilized?

Regarding the technology used to study the brain,which of the following statements is FALSE?

Different patterns of brain activity have been found to accompany major psychological disorders,such as depression or schizophrenia,according to studies conducted using which brain tool?

Research using PET scans of human brains indicates that

A PET scan detects which of the following that are emitted by glucose as it is consumed by the brain cells?

Which species of animals have the largest brains?

Eventually,fMRI may help us to distinguish between lies and confabulations,which are

A PET scan records the amount of which radioactive substance used by brain cells?

Which of the following gives both a three-dimensional structural view of the brain as well as making brain activity visible?