The work aims to provide an overview of the field of contemporary hallucinations research. It will consist of 28 chapters, the writing of which will be put out to international experts specialized in the specific fields at hand. The work aims to be unique, in that it intends to cover many different types of hallucination, and to approach the subject matter from four different perspectives, i.e., conceptual, phenomenological, neuroscientific, and therapeutic.
Hearing voices when nobody speaks or seeing objects no one else sees???hallucinations are intriguing phenomena that have puzzled clinicians, researchers, and lay people alike for centuries. In this book, the authors review the latest research on the cognitive and neural bases of hallucinations and outline their unique neurobiology by drawing on evidence from brain imaging and neurotransmission studies. Hallucination characteristics in different forms of psychosis, as well as other clinical groups and conditions, such as brain damage, Charles Bonnet syndrome, dementia, and chemical substance abuse receive detailed attention. The authors integrate the wealth of recent findings into a cohesive framework and put forward a comprehensive, multicomponent model of hallucinations. They also discuss the treatment of hallucinations, ranging from pharmacotherapy and cognitive therapy to transcranial magnetic stimulation. The book includes a comprehensive list of available hallucination questionnaires and scales as a handy clinical assessment resource.
Have you ever seen something that wasn’t really there? Heard someone call your name in an empty house? Sensed someone following you and turned around to find nothing? Hallucinations don’t belong wholly to the insane. Much more commonly, they are linked to sensory deprivation, intoxication, illness, or injury. People with migraines may see shimmering arcs of light or tiny, Lilliputian figures of animals and people. People with failing eyesight, paradoxically, may become immersed in a hallucinatory visual world. Hallucinations can be brought on by a simple fever or even the act of waking or falling asleep, when people have visions ranging from luminous blobs of color to beautifully detailed faces or terrifying ogres. Those who are bereaved may receive comforting “visits” from the departed. In some conditions, hallucinations can lead to religious epiphanies or even the feeling of leaving one’s own body. Humans have always sought such life-changing visions, and for thousands of years have used hallucinogenic compounds to achieve them. As a young doctor in California in the 1960s, Oliver Sacks had both a personal and a professional interest in psychedelics. These, along with his early migraine experiences, launched a lifelong investigation into the varieties of hallucinatory experience. Here, with his usual elegance, curiosity, and compassion, Dr. Sacks weaves together stories of his patients and of his own mind-altering experiences to illuminate what hallucinations tell us about the organization and structure of our brains, how they have influenced every culture’s folklore and art, and why the potential for hallucination is present in us all, a vital part of the human condition.
A Dictionary of Hallucinations is designed to serve as a reference manual for neuroscientists, psychiatrists, psychiatric residents, psychologists, neurologists, historians of psychiatry, general practitioners, and academics dealing professionally with concepts of hallucinations and other sensory deceptions.
Each year, some two million people in the United Kingdom experience visual hallucinations. Infrequent, fleeting visual hallucinations, often around sleep, are a usual feature of life. In contrast, consistent, frequent, persistent hallucinations during waking are strongly associated with clinical disorders; in particular delirium, eye disease, psychosis, and dementia. Research interest in these disorders has driven a rapid expansion in investigatory techniques, new evidence, and explanatory models. In parallel, a move to generative models of normal visual function has resolved the theoretical tension between veridical and hallucinatory perceptions. From initial fragmented areas of investigation, the field has become increasingly coherent over the last decade. Controversies and gaps remain, but for the first time the shapes of possible unifying models are becoming clear, along with the techniques for testing these. This book provides a comprehensive survey of the neuroscience of visual hallucinations and the clinical techniques for testing these. It brings together the very latest evidence from cognitive neuropsychology, neuroimaging, neuropathology, and neuropharmacology, placing this within current models of visual perception. Leading researchers from a range of clinical and basic science areas describe visual hallucinations in their historical and scientific context, combining introductory information with up-to-date discoveries. They discuss results from the main investigatory techniques applied in a range of clinical disorders. The final section outlines future research directions investigating the potential for new understandings of veridical and hallucinatory perceptions, and for treatments of problematic hallucinations. Fully comprehensive, this is an essential reference for clinicians in the fields of the psychology and psychiatry of hallucinations, as well as for researchers in departments, research institutes and libraries. It has strong foundations in neuroscience, cognitive science, optometry, psychiatry, psychology, clinical medicine, and philosophy. With its lucid explanation and many illustrations, it is a clear resource for educators and advanced undergraduate and graduate students.
Auditory hallucinations rank amongst the most treatment resistant symptoms of schizophrenia, with command hallucinations being the most distressing, high risk and treatment resistant of all. This new work provides clinicians with a detailed guide, illustrating in depth the techniques and strategies developed for working with command hallucinations. Woven throughout with key cases and clinical examples, Cognitive Therapy for Command Hallucinations clearly demonstrates how these techniques can be applied in a clinical setting. Strategies and solutions for overcoming therapeutic obstacles are shown alongside treatment successes and failures to provide the reader with an accurate understanding of the complexities of cognitive therapy. This helpful and practical guide with be of interest to clinical and forensic psychologists, cognitive behavioural therapists, nurses and psychiatrists.
Tells of the adventures of Fray Servando, a Catholic priest who wanders through Europe, slips in and out of jails, escapes the clutches of a marriage-minded woman, and outwits a slaveship captain, an American planter, and the King of Spain. Reprint.