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The mainstays of brain imaging techniques have been positron emission tomography
(PET), functional magnetic resonance imaging (fMRI), magnetoencephalography (MEG), and event-related potentials (ERPs). These methods all record direct or indirect measures of brain activity and correlate the activity patterns with behavior. But to go beyond the correlations established by these techniques and prove the necessity of an area for a given function, cognitive neuroscientists need to be able to reverse engineer the brain -- i.e., to selectively remove components from information processing and assess their impact on the output.
This book is about transcranial magnetic stimulation (TMS), a technique that emerged during the same period as neuroimaging and has made it possible to reverse engineer the human brain's role in behavioral and cognitive functions. The subject areas that can be studied using TMS run the gamut of cognitive psychology -- attention, perception, awareness, eye movements, action selection, memory, plasticity,
language, numeracy, and priming. The book presents an overview of historical attempts at magnetic brain stimulation, ethical considerations of the technique's use, basic technical and practical information, the results of numerous TMS studies, and a discussion of the future of TMS in the armamentarium of cognitive neuropsychology.
The MIT Press
Making reversible lesions in the human brain was until recently a secret dream in neuroscientists' minds; examining the effects of local brain stimulation something only neurosurgeons could aspire to. This extraordinary method has opened up a multitude of experimental possibilities that have been rapidly exploited -- notably by the authors of this volume. The use of
TMS in its various guises with other non-invasive brain recording techniques such as imaging and encephalography promises another great step in the program of grounding the study of human psychology in biological facts.
|Foreword : drawn to neuromagnetism|
|Preface : a magnetic manifesto|
|1||Introduction : cognitive resolution||1|
|2||Magnets and minds in history||11|
|3||The nuts and bolts of TMS||39|
|4||Creating virtual patients : a guide to mechanism and methodology||65|
|5||Real-time neuropsychology : single-pulse TMS||95|
|6||Dynamic neuropsychology : repetitive-pulse TMS||127|
|7||The self-engineering brain||163|
|8||Can I borrow your illness?||199|
|9||Converging methodologies : a meeting of mind's maps||219|