memory/amnesia Flashcards
Role of the hippocampus and parahippocampal gyrus? (4x)
DECLARATIVE MEMORY (FACTS)
On the way to airport for vacation, 58 yo F begins to behave in very strange way. Husband notices when he talks to her she answers appropriately w fluent speech but seems to have no ability to retain any new information. She repeatedly asks where they are going, even after he has told her many times. The episode lasts for about 6 hours. The following day she is back to normal but has no recollection of the prior day events. This episode is most consist with a diagnosis of: (3x)
TRANSIENT GLOBAL AMNESIA
Characteristic of alcohol-induced blackouts (2x)
ANTEROGRADE AMNESIA FOR A TIME WHILE HEAVILY INTOXICATED BUT AWAKE
What characterizes the memory loss in patients with dissociative amnesia? (2x)
EPISODIC
Example of declarative memory (2x)
RETENTION AND RECALL OF FACTS
Pt with hx of herpes simplex and seizure d/o undergoing EEG monitoring that recorded no epileptic activity during, after and before a confused state wherein pt suddenly awoke frightened. The next day pt with baseline demeanor has no memory about that episode. (2x)
AMNESTIC DISORDER
61y/o pt presents to ED with family who report that the pt unable to remember recent events. Memory problems started 2 hours prior; cognitively intact before episode. Pt is alert, anxious, frustrated: “Why am I in the hospital?” Dx: (2x)
TRANSIENT GLOBAL AMNESIA
A 72 year old develops sudden onset memory loss. She didn’t know how she and spouse arrived at supermarket. The spouse noted that she could drive without issues but appeared anxious. The patient was able to appropriately answer questions but forgot the conversation and then returned to baseline. What is the most likely diagnosis?
TRANSIENT GLOBAL AMNESIA
A surgeon unable to describe anatomical parts involved in one of his common surgeries is experiencing what type of memory impairment?
SEMANTIC
Injury of bilateral parahippocampal cortex and hippocampal formation results in what
AMNESIA
55 year old brought to ED disheveled and behaving strange, stares blankly and is mute. Doesn’t know who they are and all studies are negative. Has vague memory of “walking away from something horrible”. Dx?
DISSOCIATIVE AMNESIA
A 40-year-old pt is hospitalized for eval of fever, weight loss and ataxia. Psychiatric consultation is requested as the patient seems depressed, and a family member reports that the pt has been exhibiting progressive memory loss over the last several months. Which of the following lab tests may help explain the patient’s presentation?
HIV
2 months after severe brain injury, pt opens the eyes for prolonged periods but remains inattentive, does not speak, and shows no signs of awareness of the environment or inner need. Pt is capable of some rudimentary behaviors such as following a simple command, gesturing, or producing single words or brief phrases, always in an inconsistent way from one exam to another. Which of the following is the most accurate description of the pt’s condition?
MINIMALLY CONSCIOUS STATE
Memory loss pattern in dissociative amnesia
OCCURS FOR A DISCRETE PERIOD OF TIME
Amnesia characterized by loss of memory of events, occurs after onset of etiologic condition or agent
ANTEROGRADE