basis of behavior

Which of the following would most likely result from an injury to the medulla?

a life threatening distribution of heartbeat and breathing

An image projected to the left visual field of a split-brained person will be processed in the

right visual cortex

Which of the following allows the examination of living brain tissue visually without performing surgery?

Mri scan

Which of the following is reduced during a fight-or-flight reaction?

adrenaline

Damage to which of the following brain structures may cause the inability to detect the emotional significance of facial expressions, especially those demonstrating fear?

amygdala

A drug that has the effect of intensifying or mimicking a particular neurotransmitter can be characterized as

an antagonist, because it intensifies the effects of a particular neurotransmitter

Which of the following correctly pairs subdivisions within the major divisions of the human nervous system?

autonomic ; sympathetic and parasympathetic

Neurotransmitters are typically stored in which of the following parts of a neuron?

axon terminals

Which of the following parts of the brain is most active in decision-making?

cerebral cortex

A person with damage to Broca's area would most likely demonstrate which of the following symptoms?

difficulty forming words and producing speech but do not struggle with comprehension

Damage to the cerebellum would most likely result in which of the following problems?

difficulty with coordination , imbalance and gait disorders

Which of the following neurotransmitters has been linked to Parkinson's disease and schizophrenia?

dopamine

Painkilling substances produced by the brain are known as

endorphins

The brain scans of people with amnesia are most likely to show damage to the

hippocampus

Activation of the parasympathetic nervous system results in which of the following?

it increases heart rate

Which of the following is true of the reticular activating system?

it regulates levels of arousal

Juana accidentally touched a hot iron. She immediately drew back her hand. Which of the following is true about the withdrawal of her hand?

it was initiated in the spinal cord

Which of the following areas of the body has the largest number of sensory neurons?

lips

The area of the brain stem that is important in controlling breathing is the

medulla

Which of the following provides information regarding brain function by monitoring the brain at work through metabolism of glucose?

positron emission tomography

Which of the following is the correct sequence of the neural chain of events set in motion by an environmental stimulus?

receptors -> afferent neurons -> inter neurons -> efferent neurons -> effectors

An individual with damage to Wernicke's area is most likely to have difficulty Responses

remembering the name of someone in a photograph

The process by which neurotransmitters are reabsorbed into the neuron after it fires is called

reuptake

What hormone seems to be most closely linked with aggressive behavior?

testosterone

Immediately after firing, a neuron is incapable of responding to stimulation. This condition is referred to as

the absolute refractory phase

Hunger and eating are primarily regulated by which of the following?

the hypothalamus

The part of the endocrine system that is responsible for overseeing and regulating the release of hormones across the entire body is the

the hypothalamus

Treating a patient for Parkinson's disease includes administering a chemical that will lead to increases in the patient's

the levels of dopamine

Which of the following occurs when a neuron is stimulated to its threshold?

the movements of sodium and potassium ions across the membrane creates an action potential

The time shortly after a neuron fires is referred to as

the refractory period

Damage to a small part of the occipital lobe would most likely result in

vision