For Number 25) Is the answer A? 26) What is the answer? 27) Which visual pathway

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For Number

25) Is the answer A?

26) What is the answer?

27) Which visual pathway is distrubed for achromatopsia?

Which of the following brain mapping techniques has the lowest temporal resolution? Multiple-unit recording c fMRI For a typic split. tient, if a picture of a is resented in the left visual field and a piature of a stoon is presented in the right visual field and the patient is asked to identify what had been presented, the patient would say and pick out a from an array of unseen objects with the hand. cup, spoon, right cup, spoon, left spoon, cup, left d) spoon, cup, right 24 Some measures of brain function reveal what brain region is necessary (causal for a mental ability, and other brain measures reveal what brain region is associated (correlated) with a mental ability. Which answer below contains only causal measures? a) lesions and functional magnetic resonance imaging (flMRI) b MRI and transcranial magnetic stimulation TMS c) lesions and TMS fMRI and electroencephalogram (EEG) II. Short Answer Questions (25 Points (5 Points each)): 27. Based on what you learned in lecture, describe a cognitive disorder that may occur when a visual pathway is disrupted. In doing so, (a) name the cognitive disorder, (b) briefly explain what the individual may experience, and (c) identify which visual pathway was likely disrupted. cant recom re color S chroma top si decre and gray Cos and appe He and sexual deve not a pathway

Explanation / Answer

25. The answer is C , where the patient when presented with a spoon to his right vision, cannot say what it is , but can pick it up from his left hand.Here, When image is shown to his right vision ,the image is seen by left hemisphere and the left center communicates through speech. But when the image is shown to his left ,he cannot see much, but can point it and pick it. Here the right hemispherecannot share information but he can pick it up with his left hand. So, he says spoon, picks up cup with his left hand.

26. The option c would suit. fMRI is an neuroimaging method to determine corelation between brain and behaviour. TMS can be used to see the causal relation along with varition in onset lesion.

27. There are two pathways, Dorsal pathway and Ventral pathway. Here,The ventral pathway is mostly affected . Here it courses through occiptoparietal cortex,to anterior part of inferior temporal area.It processes features like shape, color, brightness, that are available in the information passed to the cortex from retina.

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