Emotion has been shown to be lateralized in the brain. This study examines the individual differences influencing the patterns of hemispheric asymmetry in the perception of emotional words. This study explores how individuals’ level of depression and anxiety affects how they perceive emotional words varying in valence and arousal. Participants with a lower level of depression demonstrated more hemispheric asymmetry with a bias toward words presented to the left hemisphere, but participants with a higher level of depression had no hemispheric differences. Participants with a lower level of depression demonstrated a bias toward positive words, but participants with a higher level of depression had no difference in valence. Similarly, participants with a lower level of anxiety had a positivity bias, but participants with a higher level of anxiety had no difference in valence. These findings indicate similarities and differences in emotional perception in depression and anxiety and may represent some of the neurological underpinnings of these disorders. / Department of Psychological Science

Three reaction time experiments were conducted to determine when and how memory for the normal left-right orientation of letters is mediated by the developing brain. In each experiment, participants identified forward and backward letters presented unilaterally to each visual field and thus to each hemisphere (VF-H). / The main findings were as follows: (1) For the five-year-olds, no VF-H differences were found in the speed of identifying either forward or backward letters or in the difference in speed between forward and backward letters. (2) The seven-year-olds identified forward letters faster than backward letters in the right visual field-left hemisphere (RVF-LH) with the contralateral, right hand, and the boys, unlike the girls, also showed this difference in the left visual field-right hemisphere (LVF-RH) independent of the responding hand. (3) Performance of the nine-year-olds was similar to that of the seven-year-olds. (4) Adults identified forward letters faster than backward letters in the RVF-LH with each hand, whereas in the LVF-RH this difference was found for the ipsilateral, right but not for the contralateral, left hand. / Support was provided for the Corballis-Beale (1976) hypothesis, and discussion centered on the implications of the results for the development of cerebral lateralization of memory for the normal left-right orientation of letters in normal and reading disabled children.

Thesis (D. Min.)--Erskine Theological Seminary, 1996. / Abstract. Includes bibliographical references (leaves 141-145).

Thesis (doctoral)--Universiteit Utrecht, 1995. / Summaries in English and French.

Thesis (Ph. D.)--University of Chicago, Dept. of Psychology, August 1999. / Includes bibliographical references. Also available on the Internet.

Norman Geschwind, Albert M. Galaburda. / "A Bradford book." "Much of this book appeared as a three-part article in the 'Archives of neurology' volume 42, May, June, and July, 1985"--T.p. verso. Includes index. / Bibliography: p. [241]-273.

This investigation focused on two major areas of investigation, (a) the differentiation of functions between the two cerebral hemispheres and (b) the effectiveness of electromyographic biofeedback versus relaxation tape input as methods of lowering levels of arousal. The purpose of the study was to evaluate the differential effects of EMG biofeedback and relaxation tape input to the right ear only, to the left ear only and to both ears in a strongly lateralized population. Subjects were 56 students recruited from undergraduate psychology classes. To be included in the study, subjects had to score at minimum, and Edinburgh Handedness Inventory Laterality Quotient of 68, Declie = Right 3, and had to demonstrate a right ear advantage on the Dichotic Listening Task for Words.

Doctorat en sciences psychologiques / info:eu-repo/semantics/nonPublished

Please read the abstract in the 00front part of this document. / Dissertation (MA (Communication Pathology))--University of Pretoria, 2007. / Speech-Language Pathology and Audiology / unrestricted

M.A. (Clinical Psychology) / Research on lateralization has been replicated in many countries of Europe, the American states and the Asiatic states. The research findings on language functions verify the occurrence of cerebral dominance or lateralization in these various races. In the South African context, language lateralization has been studied among the whites and the asiatics, but no study to date has been done among the various black population groups. The specific aim of the present study was to fill this void by researching language lateralization in a young mail Tsonga population, ascertaining the effect of the degree of language lateralization on various language abilities (reading, writing, spelling, vocabulary)...