Journal Article Summary

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Journal Article Summary

Article reference
Ambron, E., Lingnau, A., Lunardelli, A., Pesavento, V., & Rumiati, R. I. (2015). The effect of goals and vision on movements: A case study of optic ataxia and limb apraxia. Brain & Cognition, 9577-89 13p. doi:10.1016/j.bandc.2015.01.006

Purpose of the study
The purpose of the study was to investigate the potential outcomes of spatial and temporal features of reaching and grasping movements in a patient whom suffered from a ischemic stroke, and showcases the following the two neuropsychological symptoms: optic ataxia and limb apraxia.

Hypothesis (es)
The authors of this study made a hypothesis with the specification of what each symptom entails for a patient’s performance. The general
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Procedure utilized
Firstly, the patient was administered various tests that were in relation to the neuropsychological assessment portion of the study. These tests consisted of language, comprehension/understanding, and memory recall assessments. As for testing out the effects of limb apraxia and optic apraxia, a series of performance tasks were documented and was evaluated by three external independent judges. As for the experiments, the patient was put into resembling setups with specified experimental tasks, but with a distinct final goal.

Summary of
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In regards to the spatial criterion of the movement, there was a statistical difference solely for the vertical end-point of the movement, which was moved in the direction of the body when the last goal was to utilize the object (M = 171.5 mm), as opposed to moving it in (M = 179.2 mm) a separate area. The change was additionally adjusted by the viewing condition and the hemispace of the movement. Altogether, when carrying out the movement in the direction of the right hemispace followed by the left hemispace, patient’s end-point of moving was nearer in distance to the body. Additionally when it came to performance from controls in both spatial and temporal criterions, there was a varying effect between the two. On the other hand, it was found that the patient did just as a satisfactory job in central viewing in grasping to move and grasping to
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