Download e-book for iPad: Amobarbital Effects and Lateralized Brain Function: The Wada by David W. Loring, Kimford J. Meador, Gregory P. Lee, Don W.

Download e-book for iPad: Amobarbital Effects and Lateralized Brain Function: The Wada by David W. Loring, Kimford J. Meador, Gregory P. Lee, Don W.

By David W. Loring, Kimford J. Meador, Gregory P. Lee, Don W. King

ISBN-10: 1461228743

ISBN-13: 9781461228745

ISBN-10: 1461277043

ISBN-13: 9781461277040

The intracarotid amobarbital (or Amytal) approach is often often called the Wada try in tribute to Juhn Wada, the health professional who devised the procedure and played the 1st easy animal examine and scientific stories with this system. Wada trying out has develop into a vital part of the pre­ operative review for epilepsy surgical procedure. curiously, although, Wada at first built this system as a method to evaluate language dominance in psychiatric sufferers so that electroconvulsant remedy should be utilized unilaterally to the non-dominant hemisphere. Epilepsy surgical procedure has matured as a manageable remedy for intractable seizures and isn't any longer confmed to some significant universities and scientific institutes. but, as is more and more transparent by way of interpreting the surveys of ways utilized by epilepsy surgical procedure facilities (e.g., Rausch, 1987; Snyder, Novelly, & Harris, 1990), there isn't purely nice heterogeneity within the tools used in the course of Wada checking out to evaluate language and reminiscence features, yet there additionally seems an absence of consensus concerning the theoretical assumptions, and maybe, even the objectives of this procedure.

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Additional info for Amobarbital Effects and Lateralized Brain Function: The Wada Test

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Although memory for the complex figure was normal by quantitative criteria, there was qualitative distortion on this task, which is frequently associated with right TLE (Loring, Lee & Meador, 1988). Hippocampal stimulation studies (Lee, Loring, Smith & Flanigin, 1990) revealed verbal memory decline following left hippocampal stimulation only. One-year followup neuropsychological evaluation revealed an increase in selective reminding performance as well as a decrease in Complex Figure Recall. In addition, there was a greater decline over a one half hour delay for the Visual Reproduction subtest from the WMS-R than the Logical Memory subtest.

Three of7 patients displayed poor recognition memory contralateral to the side of eventual resection (2 R, 38 Memory 1 L), with adequate memory performance following ipsilateral injection. Of the remaining 4 patients, 1 received a single injection ipsilateral to surgery and demonstrated adequate memory while the other 3 patients displayed adequate memory following both injections. The criteria for passing or failing were not included, and their treatment of false positive responses, if any, was not described.

In 1953, for example, she indicated the year to be 1950. In 1955, "her immediate recall of stories and drawings was inaccurate and fragmentary, and delayed recall was impossible for her even with prompting; when the material was presented again she failed to recognize it" (p. 17). No formal test scores were presented. Five additional patients who underwent bilateral temporal lobe resections that extended 5-6 cm posteriorly from the temporal tip were presented. In each case, surgery was followed by moderately severe memory deficits.

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Amobarbital Effects and Lateralized Brain Function: The Wada Test by David W. Loring, Kimford J. Meador, Gregory P. Lee, Don W. King


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