3 points If the fusiform facial area is lesioned, what might...

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Patient C had a stroke of the anterior cerebral artery affecting the margins of the lateral frontal lobe and the majority of the medial frontal lobe. Patient D had a stroke of a branch of the middle cerebral artery affecting Wernicke's area and underlying white matter. Which patient would be most likely to exhibit a visual field defect? Which type of visual field defect would patient exhibit? Explain your answers.

Supreeta N.

Which finding is MOST suggestive of a lesion in the dominant cerebral cortex? (A) Right-sided lesion on CT scan. (B) Inattention by the patient to a person approaching from the left. (C) Difficulty with naming common objects. (D) Inability to identify by touch a coin placed in the patient's hand.

Emergency Medicine Examination & Board Review

blind-emotion-when-the-area-of-the-brain-responsible-for-vision-is-destroyed-individuals-experience-cortical-blindness-patients-with-cortical-blindness-are-unaware-of-any-visual-stimulus-inc-19934

Blind Emotion: Exploring Visual Perception in Cortical Blindness When the area of the brain responsible for vision is destroyed, individuals experience cortical blindness. Patients with cortical blindness are unaware of any visual stimulus, including light. In a 52-year-old male patient with cortical blindness (as a result of two strokes within a 38-day timeframe), a series of visual stimuli were presented on a computer screen. The patient was given two choices for each stimulus and asked to report what was on the screen. The patient's responses were recorded by an individual behind the screen who could not see the contents on the screen. (a) An initial baseline test was conducted by presenting black squares and circles on the white background of the screen. The patient correctly "guessed" the item on the screen in 90 of the 200 trials. Researchers concluded that the patient's performance was not statistically different from chance. Explain what this means using the language of hypothesis testing. (b) Researchers then presented the patient with a randomized series of pictures depicting angry and happy faces. The patient was asked to report the emotion shown on the face. The patient answered correctly in 118 of 200 trials. Do these results suggest the patient's performance is statistically different from chance? If the results are statistically different from chance, construct a 95% confidence interval to estimate the proportion of correct answers. Note: Similar results were obtained for sad versus happy and fearful versus happy faces. (c) The researchers wanted to determine if the patient could identify other facial characteristics. They randomly showed male or female faces and asked the patient to identify the gender. The patient was correct in 89 of 200 trials. What does this suggest?

Adi S.

Transcript

00:01 Hello students, for this question the patient who would likely to cause or who would likely to exhibit a visual field defect more that will be patient c.

00:27 Here the type of stroke that the patient will exhibit is contralateral hemiparesis affecting the opposite side of the body to the lesion which may include a contralateral visual field defect.

01:02 The type of visual field defect that a patient c would exhibit depends on the location and extent of the lesion...

Question

3 points If the fusiform facial area is lesioned, what might result? A. Akinetopsia B. Achromatopsia C. Prosopagnosia D. Hemineglect Previous

Question

3 points If the fusiform facial area is lesioned, what might result? A. Akinetopsia B. Achromatopsia C. Prosopagnosia D. Hemineglect Previous

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