Title

Verbal and Nonverbal Memory in Hemispherectomy: Lateralization Effects

Publication Date

7-2012

Abstract

Even more than temporal and frontal lobe resection, hemispherectomy is a last-resort surgery for intractable epilepsy. As a "radical" intervention it is generally performed for children with intractable seizures and often in the midst of a life-threatening emergency such as status epilepticus. As the following paper will demonstrate, studies of neurocognitive outcome in general, and memory in specific, following hemispherectomy are mixed, although findings tend to indicate stronger lateralization of verbal memory. This is often demonstrated by loss of verbal memory following left hemispherectomy, although there are few studies focusing solely on hemispherectomy and neurocognitive outcome. We examined data from 25 patients who participated in the University of California, Los Angeles (UCLA) Pediatric Epilepsy Surgery Program (Right Hemisphere = 7; Left Hemisphere = 18). The The California Verbal Learning Test-Children's Version was used as a verbal memory correlate and the Doors Visual Recall was used as a correlate of nonverbal memory. Based upon a review of the literature, we hypothesized that, (a) verbal memory would be significantly different between hemispheres with higher scores in the remaining left hemisphere; (b) nonverbal memory would be significantly different between hemispheres with higher scores in the remaining right hemisphere. Exploratory analyses were also undertaken. Implications for lateralization, medical factors, and plasticity are discussed.

First Advisor

Marion, Sarah D.

Date Uploaded

10-25-2018

Collection Number

Psych0371E

Document Type

Dissertation

File Name

Wilson,_fuller.psych_0371E_10015

Language

English

Keywords

Cerebral hemispheres, Cerebral dominance, Brain, Memory, Non-Verbal Ability Tests

Disciplines

Psychology

Rights

Material hosted by ProQuest subject to copyright

Comments

This was uploaded by the David Allan Hubbard Library from the ProQuest Dissertations and Theses (ProQuest). If there are any mistakes in this record, please contact archives@fuller.edu.

ProQuest URL

https://search.proquest.com/docview/1477559096/4F598705C5004FD3PQ/1?accountid=11008

Upload File

wf_no

Embargo Period

10-25-2018

Share

COinS