Question 1

An electroencephalograph (EEG)records

Accepted Answer

An electroencephalograph (EEG) records electrical impulses from the brain, which are used to diagnose conditions such as epilepsy, sleep disorders, and brain tumors.

Question 2

The use of an electrode to destroy small areas of the brain beneath the surface is called

Accepted Answer

Deep lesioning involves the use of an electrode to destroy small areas of the brain beneath the surface, often used in research to study the functions of specific brain areas.

Question 3

The destruction of brain tissue occurs with both deep lesioning and with surgical

Accepted Answer

Ablation is the correct answer because it refers to the surgical removal or destruction of brain tissue, which is used to treat various neurological conditions. The other options, fMRI (functional Magnetic Resonance Imaging), PET (Positron Emission Tomography), and electroencephalography, are diagnostic techniques used to image or measure brain activity, not to destroy brain tissue.

Question 4

Pierre Flourens surgically removed portions of a rabbit's cerebellum with the rabbit subsequently showing extreme problems with motor coordination. This surgical removal of the surface portions of the cerebellum is an example of

Accepted Answer

Ablation refers to the removal or destruction of brain tissue for the purpose of studying the functions of different parts of the brain. In this case, Pierre Flourens' surgical removal of portions of a rabbit's cerebellum to study its effects on motor coordination is an example of ablation.

Question 5

In biopsychology, the surgical removal of tissue from the surface of the brain is called

Accepted Answer

Ablation refers to the surgical removal of tissue from the brain, a method used in research and medical procedures to study or treat brain functions and disorders.

Question 6

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 specifically designed to record the electrical activity of the brain, making it the ideal tool for studying brain wave patterns during various mental states such as sleep, daydreaming, and hypnosis.

Question 7

By detecting the subatomic particles emitted by weakly radioactive glucose as it is consumed by the brain, researchers are able to obtain detailed images of activity both near the surface and below the surface of the brain. This technique is called a(n)

Accepted Answer

The technique described is Positron Emission Tomography (PET) scan, which involves using a radioactive tracer (in this case, glucose) to visualize and measure changes in metabolic processes, and is particularly useful for brain imaging.

Question 8

Which of the following techniques provides a fascinating glimpse into the true origins of behavior by allowing scientists to view the action potentials of a single neuron?

Accepted Answer

Microelectrode recording is the technique that allows scientists to view the action potentials of a single neuron, providing insights into the origins of behavior by directly measuring electrical activity at the cellular level.

Question 9

Scientists destroyed a tiny area of a cat's limbic system by inserting a tiny electrode into this target area and then passing an electric current through the electrode. They then observed the cat for any changes in its behavior, which would provide clues about the function of this affected area. The procedure that was used to destroy the tiny area in the cat's brain is known as

Accepted Answer

Deep lesioning involves destroying a specific area of the brain to study its function by observing changes in behavior or physiological processes. This is achieved by inserting an electrode into the target area and passing an electric current through it, as described in the scenario.

Question 10

In order to detect the electrical activity of a single neuron, a scientist would most likely use

Accepted Answer

A microelectrode is a tool specifically designed for measuring the electrical activity of single neurons, allowing scientists to record or stimulate neural activity at a very fine scale.

Question 11

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

Accepted Answer

A PET (Positron Emission Tomography) scan uses a radioactive form of glucose to measure brain activity. Since brain cells consume glucose for energy, tracking the distribution and amount of radioactive glucose allows for the visualization of active brain areas.

Question 12

The procedure that detects, amplifies, and records electrical activity in the brain is known as

Accepted Answer

Electroencephalography (EEG) is the procedure that involves placing electrodes on the scalp to detect, amplify, and record the electrical activity of the brain.

Question 13

PET scans and EEGs are considered __________ imaging techniques.

Accepted Answer

PET scans and EEGs are considered functional imaging techniques because they measure brain activity and function, rather than just the physical structures of the brain.

Question 14

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

The technique being utilized is Electroencephalography (EEG), which is specifically designed to measure the electrical activity of the brain through electrodes placed on the scalp. This is the method used to observe and record beta, alpha, theta, and delta waves during different stages of sleep.

Question 15

An extremely thin glass tube filled with a salty fluid with its tip being small enough to detect the electrical activity of a single neuron would be referred to as a(n)

Accepted Answer

Microelectrodes are designed to measure electrical activity in biological cells and tissues, including the activity of single neurons, by being inserted directly into or near the target cells. Their small size allows for the detection of electrical signals at a very fine scale, which is not the purpose of pixels, PET scans, or fMRIs.

Question 16

Which of the following is an imaging technique that results in a computer-generated image of brain activity and is based on glucose consumption in the brain?

Accepted Answer

Positron emission tomography (PET) is an imaging technique that produces a computer-generated image of brain activity by detecting the distribution of a radioactive form of glucose. This method allows researchers to observe which areas of the brain are most active during specific tasks by tracking glucose consumption, as active brain cells consume more glucose.

Question 17

Dr. Anton removed a tumor from the back surface area of a patient's brain. After removal of this brain tissue, the patient experienced extreme visual problems. This type of surgical removal of brain tissue is called

Accepted Answer

Ablation refers to the surgical removal of body tissue. In this context, since Dr. Anton removed a tumor from the brain, which led to visual problems due to the location of the surgery at the back surface area of the brain (likely affecting the occipital lobe, which is responsible for vision), the correct term is ablation.

Question 18

Three of these techniques allow scientists to observe the activity of parts of the brain without doing any damage at all. Which technique would cause some degree of damage to the living brain?

Accepted Answer

Ablation involves the removal or destruction of brain tissue to study the function of that particular area, which causes damage to the living brain. EEG, fMRI, and PET scans are non-invasive techniques that allow observation of brain activity without causing damage.

Question 19

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?

Accepted Answer

The technique used to record brain waves by affixing small disk-shaped metal plates to the scalp is called an Electroencephalogram (EEG). This method is specifically designed to detect electrical activity in the brain, which is useful for diagnosing conditions like epilepsy.

Question 20

Biopsychologists are able to pinpoint areas in the brain responsible for thoughts, feelings, and actions using all of the following EXCEPT for the

Accepted Answer

CT scans, while useful for revealing brain structures, do not directly show brain activity or how different areas of the brain engage in thoughts, feelings, and actions. EEG, fMRI, and PET scans are all used to study brain function and can help identify areas responsible for specific cognitive and emotional processes.

Quiz 2: Brain and Behavior

An electroencephalograph (EEG) records