Question 1

The most important thing scientists gain by studying animal models for the biological basis of personality is ________.

Accepted Answer

Studying animal models with similar brain structures as our own can help scientists gain understanding of our own anatomy and the biological basis of personality. This can advance our knowledge about human behavior and mental health. The other options are not directly related to studying animal models for the biological basis of personality.

Question 2

The ________ signal shows differences in brain activity levels in one condition versus another condition in an fMRI experiment.

Accepted Answer

The blood oxygen level dependent (BOLD) signal is used in fMRI experiments to measure differences in brain activity levels between different conditions. This signal is based on changes in the amount of oxygenated and deoxygenated blood in different regions of the brain, which can be detected by changes in magnetic properties. The other options (EEG, TD, and PI) are not used to measure activity levels in fMRI experiments. EEG measures electrical activity in the brain, TD is a hypothetical method that does not currently exist, and PI is used in other imaging techniques such as CT and MRI but not fMRI.

Question 3

What neurotransmitter is NOT typically associated with the substantia nigra?

Accepted Answer

D

Question 4

Nerves that send messages from the body to the brain are called ________,whereas nerves that carry messages from the brain to the body are called ________.

Accepted Answer

Afferent nerves carry messages from the body to the brain, while efferent nerves carry messages from the brain to the body. Therefore, option A is the correct answer. Option B has the order reversed, and options C and D use terminology that is not commonly used in describing nerves.

Question 5

As surgeons stimulated a particular part of her brain,Lisa experienced dramatic feelings of hopelessness and dread.According to the text,surgeons are most likely stimulating the central region of the left ________.

Accepted Answer

The answer of As surgeons stimulated a particular part of...

Question 6

What part of the human brain seems to be the most distinct from the brains of nonhuman animals?

Accepted Answer

The neocortex, which is responsible for higher cognitive functions such as language, conscious thought, and problem-solving, is the most distinct part of the human brain compared to the brains of nonhuman animals. While other parts of the brain, such as the hypothalamus, amygdala, and hippocampus, are also present in nonhuman animals, the size and complexity of the human neocortex are unique.

Question 7

What term refers to brain regions that have been injured,removed,or destroyed?

Accepted Answer

Lesions refer to brain regions that have been injured, removed, or destroyed, therefore they are the best choice for this question. Afferent areas refer to regions responsible for receiving sensory information, tomographs refer to images produced by imaging techniques, and efferent areas refer to regions responsible for sending motor commands.

Question 8

What term refers to images of very thin slices of the brain?

Accepted Answer

Images of very thin slices of the brain are called tomographs, which are produced using a technique called computed tomography (CT) scanning. X-rays can also be used for imaging the brain, but they do not produce as detailed images as tomographs. Magnetic images (MRI) use a magnetic field and radio waves to produce images of the brain, but they are not necessarily thin slices. Sonographs use sound waves to produce images, but they are more commonly used for imaging other parts of the body, such as the abdomen or heart.

Question 9

What is the oldest brain-imaging technique?

Accepted Answer

Electroencephalography (EEG) is the oldest brain-imaging technique, first introduced in the 1920s. EEG measures electrical activity in the brain through electrodes placed on the scalp, providing information on overall brain functioning and patterns of neural activity.

Question 10

Nerve fibers that organize and regulate transmissions between nerves are called ________.

Accepted Answer

Interneurons are nerve fibers that work as connectors or regulators between afferent and efferent nerves. Afferent nerves carry sensory information to the central nervous system, while efferent nerves carry motor information away from the central nervous system. Interneurons, also called intermediate neurons, filter and integrate these signals, allowing communication and coordination between different areas of the nervous system. Extraneurons is not a scientific term commonly used to describe nerve fibers.

Question 11

The projections from nerves that receive stimulation are called ________ and ________ pass this message on to the next neuron.

Accepted Answer

The projections from nerves that receive stimulation are called dendrites and they pass this message on to the next neuron through axons. Therefore, the best choice is B.

Question 12

Which brain region secretes several hormones and is located just above the roof of the mouth?

Accepted Answer

The hypothalamus is the brain region that secretes several hormones, including those that control the pituitary gland. It is located just above the roof of the mouth. The other options (cingulate, frontal lobes, hippocampus) are not associated with hormone secretion in this way.

Question 13

Which brain structure is responsible for an individual's capacity to remember large amounts of information in preparation for an exam?

Accepted Answer

The hippocampus plays a critical role in the consolidation and retrieval of memory, particularly in the formation of new memories. It is responsible for transferring information from short-term memory to long-term memory, making it essential for an individual's capacity to remember information for an exam.

Question 14

What is the best description for the mind-body problem?

Accepted Answer

The mind-body problem concerns the relationship between mental states and physical states, focusing on how mental processes are related to the physical brain and body.

Question 15

Which of the following brain imaging techniques would be most useful to a researcher interested in brain blood flow activity associated with fear after viewing pictures of spiders?

Accepted Answer

The answer of Which of the following brain imaging techniques...

Question 16

What technique can be used to temporarily knock out regions of the brain without having to create lasting lesions?

Accepted Answer

Transcranial magnetic stimulation (TMS) can be used to temporarily disrupt neural activity in specific regions of the brain without causing lasting damage. TMS uses magnetic fields to induce electrical current in the targeted brain region, which can temporarily disrupt neural firing patterns. Electroencephalography (EEG) and magnetoencephalography (MEG) are techniques for measuring neural activity, but do not allow for manipulation of brain regions. Encephalographic stimulation is not a recognized technique.

Question 17

What brain region is responsible for both an individual's strong time management skill and ability to consistently do the morally right thing?

Accepted Answer

The frontal lobes are responsible for executive functions, including time management and decision-making based on moral values. The basal ganglia primarily regulate movement, and the amygdala is responsible for emotional processing, including fear and anxiety. The hippocampus is involved in memory processing.

Question 18

________ is a phenomenon that explains the tendency for the function of one part of the brain to depend on the activity of another.

Accepted Answer

Neural context is a phenomenon that explains the tendency for the function of one part of the brain to depend on the activity of another. It refers to the interconnectivity of different brain regions and their influence on each other's functioning.

Question 19

Recent feedback regarding fMRI research suggests that results from such studies might be misleading and exaggerated due to ________.

Accepted Answer

Recent studies have found that analytic techniques used in fMRI research can lead to false positives and overestimation of effects, potentially leading to misleading and exaggerated results. While fraudulent data collection is a concern in any area of research, there is no evidence at this time to suggest that this is a major issue in fMRI studies. Hardware reliability is also an important consideration, but it is generally not a major source of concern in contemporary fMRI studies. Uncooperative subject participation can pose challenges for any study, but it is typically managed through appropriate recruitment and screening procedures.

Question 20

What is NOT a challenge associated with the advancement of neural imaging technology?

Accepted Answer

Neural imaging technology, such as MRI or EEG, does not introduce trace amounts of harmful chemicals into the human body. This answer is the only option that is not a challenge associated with the advancement of neural imaging technology. Option A, sensitivity to outside interference, and option D, requiring expert attention, are considered challenges. Option B, high cost, is also a challenge for many researchers and institutions.

Quiz 8: The Anatomy and Physiology of Personality