Question 1

The cerebral cortex is divided into eight smaller areas known as

Accepted Answer

The cerebral cortex is divided into four lobes on each side (frontal, parietal, temporal, and occipital), making a total of eight lobes.

Question 2

By placing positron detectors around the head and sending data to a computer, it is possible to create a moving, color picture of changes in brain activity using a(n)

Accepted Answer

PET (Positron Emission Tomography) scan involves the use of positron detectors to create images of brain activity by detecting changes in blood flow or metabolic processes, which is consistent with the description given.

Question 3

Seventy percent of the neurons in the central nervous system of humans are located in the

Accepted Answer

The cerebral cortex is the part of the brain that is involved in higher brain functions such as thought and action. It contains a large percentage of the neurons in the central nervous system, making it the correct answer. The other options, while important parts of the central nervous system, do not contain as high a percentage of neurons as the cerebral cortex does.

Question 4

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

Accepted Answer

The cerebral cortex is responsible for the complex thought processes, reasoning, and problem-solving abilities that underpin human intellectual superiority. It is the most developed part of the human brain and is involved in higher-order brain functions.

Question 5

The most obvious difference between the human brain and the brain of a fish would be in the

Accepted Answer

The most obvious difference between the human brain and the brain of a fish is in the cerebral cortex. The cerebral cortex, responsible for higher brain functions such as thought and action, is far more developed in humans, contributing to our complex cognitive abilities.

Question 6

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

Accepted Answer

The answer of Which is more important in gauging the...

Question 7

Regarding PET scans, which of the following statements is FALSE?

Accepted Answer

PET scans detect positron emissions from a radioactive substance (often a form of glucose) injected into the body, not negative ion particles emitted by sodium and potassium. This substance is consumed by active parts of the brain, allowing the scan to show which areas are more active.

Question 8

Regarding brain size and abilities, which of the following statements is FALSE?

Accepted Answer

The human brain is actually highly twisted and folded, which increases the surface area for neurons. In contrast, the brains of many lower animals tend to be smoother.

Question 9

Although Einstein's brain was of normal overall size, there were parts of his cerebral cortex that had a unique anatomy and were larger than in most other brains. The parts of Einstein's cerebral cortex that were larger were the ones necessary for

Accepted Answer

Einstein's brain had unique anatomical features in parts of the cerebral cortex that are associated with spatial reasoning, which is crucial for understanding complex spatial relationships and for visualizing and manipulating objects in space. This ability is essential for theoretical physics, a field in which Einstein made significant contributions.

Question 10

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 description matches a PET (Positron Emission Tomography) scan, which uses a radioactive substance to visualize and measure changes in metabolic processes, and in this case, to identify active brain areas.

Question 11

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

Accepted Answer

When a person lies, the front of the brain, particularly the prefrontal cortex which is involved in decision making and controlling behavior, becomes more active. This is because lying requires more cognitive effort than telling the truth.

Question 12

In a comparison of the human brain with other animals, which of the following statements is FALSE?

Accepted Answer

While humans have a relatively large brain weight to body weight ratio, some smaller mammals, like certain species of shrews, have an even higher ratio.

Question 13

Regarding the cerebral cortex of humans, which of the following statements is FALSE?

Accepted Answer

The cerebral cortex is actually much thinner, typically around 2-4 millimeters thick, not 10 millimeters.

Question 14

Which part of the brain consists of two large hemispheres, which are divided into smaller areas known as lobes?

Accepted Answer

The cerebral cortex is the part of the brain that consists of two large hemispheres. These hemispheres are further divided into smaller areas known as lobes, which are responsible for different functions such as sensory processing, motor control, and higher cognitive functions.

Question 15

Compared with other creatures, our human intelligence is specifically related to the fact that our brains have a much larger

Accepted Answer

The cerebral cortex is the part of the brain that is particularly larger in humans compared to other creatures, and it is closely associated with higher brain functions such as thought, reasoning, and abstract thinking.

Question 16

Regarding the findings obtained through brain scan research, which of the following statements is FALSE?

Accepted Answer

The statement that most people use only 10 percent of their brain capacity is a myth. Brain scans and research have shown that all parts of the brain have a function and are active at various times.

Question 17

Humans are superior to all other animals in

Accepted Answer

Humans are considered superior to other animals primarily in terms of intelligence, which includes cognitive abilities, problem-solving, and the use of complex language.

Question 18

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

Accepted Answer

The technology used by Daniel Langleben and his colleagues to detect lying through increased activity in the front of the brain is functional Magnetic Resonance Imaging (fMRI). This technique measures brain activity by detecting changes associated with blood flow, which can indicate areas of the brain that are more active during specific tasks, such as lying.

Question 19

In humans, which of the following looks like a giant, wrinkled walnut that consists of the two large hemispheres and covers the upper part of the brain?

Accepted Answer

The cerebral cortex is the part of the brain that looks like a giant, wrinkled walnut, consisting of two large hemispheres and covering the upper part of the brain. It is responsible for many higher-order brain functions such as sensation, perception, memory, association, thought, and voluntary physical action.

Question 20

The cerebral cortex is divided into two

Accepted Answer

The cerebral cortex is divided into two hemispheres, the left and right hemispheres, which are connected by the corpus callosum.

Quiz 2: Brain and Behavior