The Neuroscience of Hallucinations


Book Description

Hallucinatory phenomena have held the fascination of science since the dawn of medicine, and the popular imagination from the beginning of recorded history. Their study has become a critical aspect of our knowledge of the brain, making significant strides in recent years with advances in neuroimaging, and has established common ground among what normally are regarded as disparate fields. The Neuroscience of Hallucinations synthesizes the most up-to-date findings on these intriguing auditory, visual, olfactory, gustatory, and somatosensory experiences, from their molecular origins to their cognitive expression. In recognition of the wide audience for this information among the neuroscientific, medical, and psychology communities, its editors bring a mature evidence base to highly subjective experience. This knowledge is presented in comprehensive detail as leading researchers across the disciplines ground readers in the basics, offer current cognitive, neurobiological, and computational models of hallucinations, analyze the latest neuroimaging technologies, and discuss emerging interventions, including neuromodulation therapies, new antipsychotic drugs, and integrative programs. Among the topics covered: Hallucinations in the healthy individual. A pathophysiology of transdiagnostic hallucinations including computational and connectivity modeling. Molecular mechanisms of hallucinogenic drugs. Structural and functional variations in the hallucinatory brain in schizophrenia. The neurodevelopment of hallucinations. Innovations in brain stimulation techniques and imaging-guided therapy. Psychiatrists, neurologists, neuropsychologists, cognitive neuroscientists, clinical psychologists, and pharmacologists will welcome The Neuroscience of Hallucinations as a vital guide to the current state and promising future of their shared field.




The Neuroscience of Visual Hallucinations


Book Description

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.




Hallucinations


Book Description

Hallucinations, for most people, imply madness. But there are many different types of non-psychotic hallucination caused by various illnesses or injuries, by intoxication--even, for many people, by falling sleep. From the elementary geometrical shapes that we see when we rub our eyes to the complex swirls and blind spots and zigzags of a visual migraine, hallucination takes many forms. At a higher level, hallucinations associated with the altered states of consciousness that may come with sensory deprivation or certain brain disorders can lead to religious epiphanies or conversions. Drawing on a wealth of clinical examples from his own patients as well as historical and literary descriptions, Oliver Sacks investigates the fundamental differences and similarities of these many sorts of hallucinations, what they say 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.




First Episode Psychosis


Book Description

The new edition of this popular handbook has been thoroughly updated to include the latest data concerning treatment of first-episode patients. Drawing from their experience, the authors discuss the presentation and assessment of the first psychotic episode and review the appropriate use of antipsychotic agents and psychosocial approaches in effective management.




Hallucinations


Book Description

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.




Neuroscience


Book Description

Finally, the bundle is here! In this book of 3, you’ll get 3 times the value! Read about the following topics: Book 1 - This book expounds on the subjects listed below. It also contains tips, tricks, and natural treatments for each. Phobias are a worldwide phenomenon, but why do we have them? Learn why in this nifty guide. What is manic depression? Manic depression is what bipolar disorder used to be called, there are varying kinds of manic depressions, from moderate to severe. Read about some of the signs of manic depression, and learn when to look for assistance. Study the various triggers that can cause a manic depressive episode. Study the various tests that studied the disorder in teens. Learn about various treatments, strategies, and coping methods. Tourette’s Syndrome has various causes and manifestations, using this book you can learn how to detect and began to manage it. Tourette’s Syndrome has a host of sociological and cultural elements tied to it, especially for children. Book 2 - Hallucinations, everyone’s heard of them, but most don’t know the full extent and there are a lot of preconceived ideas and stereotypes out there. Emotional resilience is another thing that most people don’t really understand, as it’s not as well known. Bulimia is something that is more well known, but is the knowledge you possess accurate? Brain cancer, something no one wished existed. This guide will help shed some light on these subjects, and suggest/provide some treatment options, by discussing subjects such as, Hallucinations in different age groups. The different types of hallucinations and how to cope with them. Some of the typical signs and causes of hallucinations. How to speak with someone who is hallucinating, and how to take care of them. Attributes and practices of emotionally resilient people. !0 ways to build your emotional strength and increase your psychological durability. The facts and falsehoods about bulimia. What the causes are. Symptoms and signs of bulimia. Book 3 - Aphasia, if you know what this word means, then either you, or someone you love has suffered from it. If you don’t know what it is, count yourself lucky and learn to reduce the risk of you getting this debilitating speech disorder. Study the amygdala, this tiny almond sized organ in our brains that is responsible for processing the majority of our more intense emotions, like aggression, anxiety, and pleasure. Learn about the history of the amygdala, as well as the sex distinctions in the human amygdala.




Inner Speech


Book Description

Inner Speech focuses on a familiar and yet mysterious element of our daily lives. In light of renewed interest in the general connections between thought, language, and consciousness, this anthology develops a number of important new theories about internal voices and raises questions about their nature and cognitive functions.




Hallucinations


Book Description

A hallucination, in the broadest sense, is a perception in the absence of a stimulus. In a stricter sense, hallucinations are defined as perceptions in a conscious and awake state in the absence of external stimuli which have qualities of real perception, in that they are vivid, substantial, and located in external objective space. The latter definition distinguishes hallucinations from the related phenomena of dreaming, which does not involve wakefulness. This new book gathers and presents research from around the globe in the study of hallucinations including the origin of hallucinations, auditory verbal hallucinations in schizophrenic patients, Charles Bonnet Syndrome, as well as hallucinations and suicide risk and the neurobiological basis of hallucinations.




A Dictionary of Hallucinations


Book Description

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.




Hearing Voices


Book Description

A comprehensive exploration of the history, phenomenology, meanings and causes of hearing voices that others cannot hear (auditory verbal hallucinations).