Laterality: Functional Asymmetry in the Intact Brain focuses on brain function and laterality as well as the various methods in assessing behavioral asymmetries, including handedness. It reviews the literature on perceptual-cognitive laterality effects in different sensory modalities, the lateralization of emotion and motor behavior, and the electrophysiological evidence. It also highlights some of the problems with the existing research and offers suggestions about the direction of future research. Organized into 17 chapters, this volume begins with an overview of cerebral asymmetry and the origins and mechanisms of lateralization. Then, it discusses the individual differences in laterality, methods and measurement used in laterality studies, and experiments on dichotic listening and auditory lateralization. The next chapters focus on the link between verbal laterality and handedness, tactual and perceptual laterality, asymmetry of motor performance, lateralization of emotional processes, and physiological measures of asymmetry. The book also introduces the handedness and its relation to cerebral function, genetics of laterality, development of cerebral lateralization, individual differences in cerebral organization, sex differences in laterality, reading- and language-related deficits, and control of the active hemisphere before concluding with a chapter discussing the experimental or strategy effects, the concept of complementary specialization, and the dichotomy between the two hemispheres of the brain. This book is a valuable resource for neuropsychologists, experimental psychologists, neurologists, and educators interested in understanding human brain function.
A Simplistic View of Cerebral Asymmetry
What Is Lateralized?
What Are the Mechanisms of Lateralization?
What Are the Origins of Lateralization?
Does It Make Any Difference How the Brain Is Organized?
Do People Habitually Use One Hemisphere?
2 Methods and Measurement in Laterality Studies
The Kimura Study
Approaches through the Visual System
Summary of Studies
Laterality Measures and Cerebral Function
3 Dichotic Listening and Auditory Lateralization
The Kimura Experiments
Word List Experiments
Is Dichotic Stimulation Necessary?
Some Concluding Remarks
4 Visual Laterality Effects
Verbal Laterality and Handedness
Verbal Stimulus or Verbal Task?
Dissociation of Verbal and Nonverbal Effects
Reaction Time Studies or Error Analysis?
Some General Comments on Visual Laterality Studies
5 Tactual Laterality Effects
6 Some General Considerations regarding Perceptual Laterality
Stimulus versus Task Factors
Attentional Bias as an Explanation of Perceptual Laterality
Lateralization as a Late Stage of Processing
What Is Lateralized?
7 Asymmetry of Motor Performance
Studies with Normal Subjects
8 Lateralization of Emotional Processes
Dichotic Listening Studies
Lateral Tachistoscopic Presentation
Lateralization of Emotional Expression
Clinical Observations on Lateralization of Emotion
Effects of Unilateral Brain Lesions
One Hemisphere or Both?
9 Physiological Measures of Asymmetry
Averaged Evoked Potentials
Regional Cerebral Blood Flow (rCBF)
10 Handedness and Its Relation to Cerebral Function
Hand Preference Measures
Left-Handedness and Hemispheric Specialization
11 Genetics of Laterality
The Genetics of Cerebral Asymmetry
The Genetics of Handedness
Genetic Determination of Handedness
Laterality Arising from a Maturational Gradient
Laterality Arising from Perinatal Brain Damage
Inheritance of Degree of Laterality
The Evolution of Laterality
12 The Development of Cerebral Lateralization
Studies of Early Brain Damage
A Behavioral Study
Other Dichotic Listening Studies
Verbal Tachistoscopic Studies
13 Introduction to Individual Differences in Cerebral Organization
Evidence concerning Reversed Lateralization
An Experimental Approach to the Degree of Lateralization Question
Other Studies of Individual Differences in Patterns of Lateralization
14 Sex Differences in Laterality
Studies of Perceptual Asymmetry in Adults
Studies with Children
Effects of Brain Damage
Sex-Related Anatomical Differences
15 Reading and Language-Related Deficits
Reading and Dichotic Listening
Reading and Visual Laterality
Reading and Somatosensory Laterality
Reading and Handedness
Speculations on Reading and Lateralization
Laterality and Other Language-Related Deficits
So What Does It Mean?
16 Control of the Active Hemisphere
Lateral Eye Movements and Hemisphericity
Eye Movements and Cerebral Organization
Controlling the Active Hemisphere
17 Some Final Words
Isolating Strategy Effects
On Complementary Specialization
The Hemispheric Dichotomy
Where Are We Now?
- No. of pages:
- © Academic Press 1982
- 28th September 1982
- Academic Press
- eBook ISBN: