Marking Period 2 Test

The fatty casing that helps speed up the neural transmissions of a neuron is called the

myelin sheath

Michael Gazzaniga is best known for

studying split-brain patients

An adult with a healthy sleep cycle is most likely to enter REM sleep

after cycling through the NREM sleep stages

The phenomenon of declining physiological effects of taking a drug after sustained use is referred to as

tolerance

Which of the following anatomical structures is involved in the vestibular sense?

Semicircular canals

Which of the following is the best definition for absolute threshold?

The lowest strength of a stimulus that a person can detect 50% of the time

What effect do agonists have?

They increase the likelihood that a postsynaptic neuron will fire.

Which of the following examples best illustrates the concept of interposition?

Because the chair partially obscured his view of the sofa, Brendan perceived the chair as being closer than the sofa.

Which of the following scenarios is the best example of synesthesia?

Anastasia sees swirls of color when she hears music because stimulation of one sensory pathway leads to the experience of another sensation.

At a synapse, neurotransmitters released by the sending neuron do which of the following?

They bind to receptors at the receiving neuron, which opens ion channels.

In a study mimicking Roger Sperry's work, Dr. Kornhauser compared the responses of split-brain patients against a control group of neurotypical participants. In his study, participants focused on a dot in the center of a computer screen and objects are presented in either the left or right visual field. After seeing the object, the participants named the object. The results of the experiment are presented below.What is the most appropriate conclusion Dr. Kornhauser can draw from the results?

Because the connection between the right visual cortex and language center has been severed, split-brain patients are not able to retrieve the name of objects seen in the left visual field.

There are two conditions in the study. The two figures below show average EEG activity for the subjects in the two conditions (Condition A on the left; Condition B on the right). The x-axis indicates time in milliseconds; time 0 indicates when the subjects first read the last word in each sentence.

Condition A included sentences such as "Strawberries are sweet," and Condition B included sentences such as "Strawberries are nervous."

Dr. Ramen recruited 100 adults to participate in her study. The taste buds of each participant were measured, and the participants tasted a number of foods. She found there was a relationship between the size of a participant's taste buds and the number of foods that a participant could taste. What research method did Dr. Ramen use, and what was she most likely studying?

Correlational; the sensitivity of supertasters

A drug that is used to treat seizures functions by preventing inhibitory neurotransmitters from returning to the presynaptic neuron. This slows the rate of neurons firing by increasing the amount of the inhibitory neurotransmitter in the synapse. The drug is most likely to be classified as a

GABA reuptake inhibitor (GRI)

Which of the following best illustrates the most predictable effect of schemas on perception?

Grant has more difficulty recognizing a penguin as a bird than he does a blue jay.

Madeline has previously been diagnosed with major depressive disorder. She has an identical twin sister, Josephine, and a nonidentical sister, Abigail. Neither of Madeline's sisters have previously been diagnosed with major depressive disorder. Which of the following statements is true of Madeline's sisters?

Josephine is more likely to be diagnosed with major depressive disorder than Abigail in response to a stressful or traumatic event.

Which of the following scenarios best illustrates the opponent-process theory of color vision?

Kayla sees afterimages of opposing colors when she stares at a poster for a long time.

Helena did not recognize her English teacher when she unexpectedly saw him while traveling in Paris, even though she knew him well back in the classroom. The fact that Helena can recognize her teacher back home more easily than in Paris best demonstrates what concept?

Perceptual set

In a study on taste, what would researchers need to do to test participants' ability to distinguish umami from similar sensations?

Place disks soaked in MSG on the participants' tongues. Then replace those disks with disks that have been soaked in water. Compare the participants' reactions.

Human tactile sense is actually a mix of which of the following distinct skin senses?

Pressure, warmth, cold, pain

Which of the following is the correct order of the eye-to-brain pathway of vision?

Retina, optic nerve, thalamus, occipital lobe

Which of the following is the process of detecting environmental stimuli and converting them into signals that can be detected by the nervous system?

Sensation

Marlene had an infection that led to deafness in her left ear. Which of the following will be the most likely impact of losing her hearing in her left ear?

She will have trouble locating the source of sounds.

The idea that there is a part of the mind that is not directly accessible to awareness but still drives a person's thinking and behavior is most directly attributable to

Sigmund Freud

Denise has damaged her auditory nerve and now has difficulty understanding what people are saying. Which of the following descriptions explains how that damage impairs her hearing?

Sound messages fail to be transmitted directly to the brain.

Antagonists function by

blocking receptors to prevent other neurotransmitters from binding to the neural receptors

The medulla oblongata is a part of the

corpus callosum

The psychodynamic theory of dreaming would postulate that

dreams fulfill unconscious wishes

Johnny often hits his brother even though his brother does not do anything to antagonize him. Johnny's aggression is most likely due to a combination of

his genetic makeup, the environment he grew up in, and the fact that aggression can be evolutionarily adaptive

A neuron sends a signal along its

axon

A person whose body is not producing enough testosterone is most likely to exhibit

fatigue

Ruth and Debbie are identical twins who were raised by the same family. Vince and Frankie are identical twins who were separated at birth and raised by different families. According to research on the heritability of personality traits, Ruth's and Debbie's personalities are statistically

likely to be as similar and dissimilar to one another as are Vince's and Frankie's personalities

Separating the monkeys into two groups, researchers created a lesion in one area of the brains of the monkeys in one group and a lesion in a different area of the brains of the monkeys in the second group. The researchers then tested the monkeys' performance on the two tasks. The figures below show the monkeys' accuracy on the two tasks. The lesions were most likely performed in the

parietal lobe for Group 1 and the temporal lobe for Group 2

The parietal lobe is most involved in

processing sensory information

Which of the following concepts refers to the diminished sensitivity to a stimulus that occurs due to constant exposure to that stimulus?

sensory adaptation

Waking up frequently, loud snoring, silent pauses in breathing, and sleepiness during the day are symptoms of

sleep apnea

The hormone most associated with the fight or flight response is

epinephrine

Orville is talking with his friends at a cafeteria table when suddenly he is distracted by hearing his name at a neighboring table. Orville's shift of attention most clearly illustrates which psychological concept?

The cocktail party phenomenon

Tracey was in pain from an ear infection, which her doctor said was in her inner ear. Which of the following is the most likely location of the infection?

The cochlea

According to the gate control theory of pain, which of the following contains a neurological gate that controls the transmission of pain messages to the brain?

The spinal cord

Which of the following best describes a major role of the thalamus?

It relays most sensory signals to the cortex.

Which hormone is released when a person is under stress?

Cortisol

Kimmie stood on the sidewalk rather than crossing the street because she saw that the approaching car was quite close to her. Which of the following concepts is best illustrated in this example?

Depth perception

Which of the following describes what happens when a neuron sends a signal?

The neuron goes from being negatively charged to briefly being positively charged, and finally returns to being negatively charged again. The magnitude of the negative charge is fixed regardless of the strength of the input signal it receives.

If a body does not have enough potassium, how might that affect neuronal firing?

The neurons will struggle to fire because there will not be enough positively charged ions to trigger the firing of the neuron.

A researcher wants to study the human sense of taste over a life span. The researcher has a group of participants taste foods that are salty, bitter, sweet, sour, and umami. Which study would best allow the researcher to test the sensation of taste as people age, and what is the likely outcome?

The researcher follows the same group of people over the course of 40 years. The researcher also measures the number of the people's taste buds throughout the 40 years. The researcher finds that as people grow older, their sense of taste diminishes and their number of taste buds decreases.

Bryan perceived a duck instead of other animals when viewing an ambiguous image because he watched a documentary about ducks the previous night. Which of the following best explains why Bryan perceived a duck?

Top-down processing, because his perception of the duck was influenced by past experience.

Carl Wernicke discovered the region of the brain that is responsible for

language comprehension