Question 1

A PET scan detects _____ emitted by brain cells.

Accepted Answer

A PET scan uses a small amount of radioactive substance called a tracer, which is injected into the body. The tracer emits positrons, which can be detected by the scanner and used to create images of brain activity.

Question 2

Eventually, fMRI may help us to distinguish between ______, which are false statements made with the intention to deceive, and ______, which are false claims believed to be true.

Accepted Answer

Lies are false statements made with the intention to deceive, while confabulations are false claims believed to be true by the person making them.

Question 3

Research using PET scans of human brains indicates that

Accepted Answer

The answer of Research using PET scans of human brains...

Question 4

Although the human brain weighs approximately three pounds, it is also important to take into consideration _____ when comparing the human brain to the brain of an elephant or whale.

Accepted Answer

When comparing the brain weight of different animals, it is important to consider the brain weight in relation to the body weight. This is because larger animals generally have larger brains, but smaller animals can have more brain mass relative to their body size. So, the brain weight to body weight ratio is an important factor to take into consideration.

Question 5

Psychiatrist Daniel Langleben and his colleagues have used _____ technology 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.

Accepted Answer

The technology used by Daniel Langleben and his colleagues to determine if a person is lying is fMRI (functional magnetic resonance imaging). This technology allows researchers to measure changes in blood flow to different parts of the brain, and has been shown to indicate increased activity in the front of the brain when a person is lying. EEG (electroencephalography) measures electrical activity in the brain, while ESB (electrical stimulation of the brain) and ablation (surgical removal of brain tissue) are not used to determine if a person is lying.

Question 6

Which area of the brain is responsible for the human intellectual superiority within the animal kingdom?

Accepted Answer

The cerebral cortex is responsible for higher cognitive functions, such as language, thought, and problem-solving, which contribute to human intellectual superiority within the animal kingdom. The other areas listed, such as the hippocampus, corpus callosum, and cerebellum, have important functions but are not directly responsible for intellectual superiority.

Question 7

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)

Accepted Answer

The study described involves marking glucose in the brain with a radioactive substance and then identifying active brain areas using detectors. This is a technique called positron emission tomography (PET). EEG measures electrical activity in the brain, MRI uses magnetic fields to create detailed images of the brain, and PPR is not a known brain imaging technique.

Question 8

Humans are superior to all other animals in

Accepted Answer

While humans may not have the speed and strength of other animals, they have a higher level of intelligence and the ability to problem-solve and communicate in complex ways that surpasses any other animal. Sensory sensitivity can also vary from individual to individual and is not necessarily a trait unique to humans.

Question 9

_____ provides detailed images of activity both near the surface and below the surface of the brain by detecting the sub-atomic particles emitted by weakly radioactive glucose as it is consumed by the brain.

Accepted Answer

PET scan (Positron Emission Tomography) is the only imaging technique that uses weakly radioactive glucose to detect detailed activity both near and below the surface of the brain. MANSCAN, MRI, and CT scans do not use radioactive glucose for brain imaging.

Question 10

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

Accepted Answer

A) PET scans and functional MRIs both provide images of brain activity.
B) fMRI images have been used experimentally to detect lies.
C) EEGs measure activity near the surface of the brain. All three statements are true.

Question 11

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?

Accepted Answer

EEG stands for electroencephalogram, which is a technique that involves affixing electrodes to the scalp to measure electrical activity in the brain. It is commonly used in sleep labs to measure the different stages of sleep based on the patterns of beta, alpha, theta, and delta waves. MRI, PET, and CT scans are imaging techniques that are not typically used to measure brain wave activity during sleep.

Question 12

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

Accepted Answer

Haier's PET scan research found that individuals who did well on difficult reasoning tests had brains that consumed the least glucose. This suggests that their brains were working more efficiently and effectively, as they required less energy to perform the same tasks as those who consumed more glucose.

Question 13

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

Accepted Answer

The answer of Haier believes his research shows that higher...

Question 14

Martina has what appears to be a seizure, and her doctor believes that she may have epilepsy.So, her doctor affixes electrodes to Martina's scalp in order to obtain a recording of her brain waves.Martina's doctor is using a(n)_____ to identify the brain wave patterns of epilepsy.

Accepted Answer

An EEG (electroencephalogram) is a test that records electrical activity in the brain using electrodes attached to the scalp. It is a common diagnostic tool for identifying epilepsy and other neurological conditions that involve abnormal brain wave patterns. MRI (magnetic resonance imaging) and CT scan (computed tomography) are imaging tests that provide detailed pictures of the brain but do not directly measure brain function or activity. Ablation is a treatment procedure that involves removing or destroying tissue, often used to treat certain types of epilepsy, but it is not a diagnostic test.

Question 15

Which is more important in gauging the intelligence of humans versus other animals?

Accepted Answer

The ratio of brain weight to body weight is a better indicator of intelligence because it takes into account the fact that larger animals will naturally have bigger brains but that doesn't necessarily mean they are more intelligent. The more accurate metric is the ratio of brain weight to body weight, which allows us to compare animals of different sizes.

Question 16

Research using PET scans of human brains indicates that

Accepted Answer

The answer of Research using PET scans of human brains...

Question 17

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

Accepted Answer

The new, improved brain imaging technique for measuring glucose metabolism of the brain is called PET scan (Positron Emission Tomography). While MRI and CT scans can provide detailed images of brain structure, they do not measure glucose metabolism. MANSCAN is not a recognized brain imaging technique.

Question 18

A PET scan records the amount of radioactive _____ used by brain cells.

Accepted Answer

PET scans use radioactive glucose, which allows the scan to record the amount of glucose being used by brain cells. This provides an image of brain activity and can help diagnose certain neurological conditions.

Question 19

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

Accepted Answer

Functional MRI (fMRI) provides 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 a three-dimensional structural view of the brain but do not measure brain activity. EEG measures brain activity but does not provide a structural view of the brain.

Question 20

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

Accepted Answer

An electroencephalograph (EEG) is a device that measures brain wave activity by detecting and amplifying the electrical signals produced by neurons in the brain. EEGs are commonly used to study brain activity during different mental states, such as sleep, daydreaming, and hypnosis. CT and MRI scans are imaging techniques that provide detailed pictures of the brain's structure but do not directly measure brain activity. Implanting microelectrodes is an invasive procedure that is typically used to study the activity of individual neurons but is not necessary for studying overall brain wave activity during different mental states.

Quiz 2: Extension A: Brain and Behavior

A PET scan detects _____ emitted by brain cells.

Eventually, fMRI may help us to distinguish between , which are false statements made with the intention to deceive, and , which are false claims believed to be true.

Research using PET scans of human brains indicates that

Although the human brain weighs approximately three pounds, it is also important to take into consideration _____ when comparing the human brain to the brain of an elephant or whale.

Psychiatrist Daniel Langleben and his colleagues have used _____ technology 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.

Which area of the brain is responsible for the human intellectual superiority within the animal kingdom?

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)

Humans are superior to all other animals in

_____ provides detailed images of activity both near the surface and below the surface of the brain by detecting the sub-atomic particles emitted by weakly radioactive glucose as it is consumed by the brain.

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

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?

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

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

Martina has what appears to be a seizure, and her doctor believes that she may have epilepsy.So, her doctor affixes electrodes to Martina's scalp in order to obtain a recording of her brain waves.Martina's doctor is using a(n) _____ to identify the brain wave patterns of epilepsy.

Which is more important in gauging the intelligence of humans versus other animals?

Research using PET scans of human brains indicates that

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

A PET scan records the amount of radioactive _____ 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?

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