Physio Flashcards
Full (286 cards)
Prosopagnosia (face blindness) is best described as involving:
intact bottom-up processing with a lack of top-down processing
For people with prosopagnosia, processing remains intact – i.e., they are able to see the features on a person’s face. However, they lack ____processing due to a brain malfunction, which means they are unable to recognize a familiar face because they cannot use previous knowledge and experience to recognize and interpret facial features.
bottom-up; top-down
The primary difficulty experienced by the patient known as “H.M.” was related to which of the following?
forming new long-term declarative memories
The EEG for stage ___ of non-REM sleep is characterized by theta waves interrupted by sleep spindles and K complexes
2
A drug that has the same effects as a neurotransmitter or that increases the effects of a neurotransmitter is referred to as a(n):
agonist
Diabetes insipidus is usually caused by a low level of antidiuretic hormone (ADH), which is secreted by the:
pituitary gland
A low level of ADH causes diabetes insipidus, which involves (sxs)
extreme thirst and the excretion of excessive and diluted urine.
Diazepam, alprazolam, and lorazepam are
benzodiazepines that are used to treat anxiety and insomnia.
Memory impairment associated with Wernicke-Korsakoff syndrome has been linked to damage to which of the following areas of the brain?
thalamus and mammillary bodies
Research has found that electrical stimulation of different areas of the ___________ in cats and other animal species produces different types of aggressive behavior.
hypothalamus (medial hypothalamus usually produces affective attack behavior, while electrical stimulation of the lateral hypothalamus produces stalking attack behavior)
Damage to the arcuate fasciculus can produce conduction aphasia which is characterized by which of the following?
(Conduction aphasia) fluent spontaneous speech, normal comprehension, and impaired repetition.
Bundle of fibers that connects Broca’s to Wernicke’s
arcuate fasciculus (damage = conduction aphasia)
Pramipexole and ropinirole are ____________ that are used to treat restless leg syndrome (and Parkinsons).
dopamine agonists
Because of their location and size, the frontal lobes of the cerebral cortex are the lobes that are most often affected by traumatic brain injury. Symptoms of frontal lobe injury are most likely to include which of the following?
inability to interact spontaneously with others, fluctuations in mood, and difficulty planning a complex sequence of movements
injury to temporal lobes
impaired long-term memory, difficulty understanding spoken words, and increased aggressive behavior
injury to occipital lobes
inability to identify colors, inability to recognize familiar words, and difficulty locating objects in the environment
injury to parietal lobes
problems with calculations and writing, difficulty distinguishing between left and right, and inability to identify objects by touch
In signal detection theory, d-prime (d’) indicates the difference between the standard scores for the
hit rate and false alarm rate. [[hit rate indicates the number of times the observer correctly detected a signal when it was present, and the false alarm rate indicates the number of times the observer erroneously detected a signal when it was not present.]]
____________ is a major inhibitory neurotransmitter, and disruption of its production or transmission in certain areas of the brain produces anxiety.
GABA
Following a stroke, a man shaves only the right side of his face, eats food only on the right side of his plate, and frequently bumps into door frames with the left side of his body. Which of the following areas of the brain was affected by the stroke?
parietal lobe
The therapeutic index (TI) is a quantitative measure of the relative safety of a drug. It is calculated by
dividing LD50 by ED50.
Bupropion (Wellbutrin) and other antidepressants that __________ have an energizing (stimulating) effect
increase norepinephrine and dopamine levels
Stimulus intensity is encoded by
the frequency of action potentials.