The Cognitive Neuropsychology of Schizophrenia [NOOK Book]

Overview

Schizophrenic patients have bizarre experiences which reflect a disorder in the contents of consciousness. For example, patients hear voices talking about them or they are convinced that alien forces are controlling their actions. Their abnormal behaviour includes incoherence and lack of will. In this book an explanation of these baffling signs and symptoms is provided using the framework of cognitive neuropsychology. The cognitive abnormalities that underlie these signs and symptoms suggest impairment in a ...
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The Cognitive Neuropsychology of Schizophrenia

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Overview

Schizophrenic patients have bizarre experiences which reflect a disorder in the contents of consciousness. For example, patients hear voices talking about them or they are convinced that alien forces are controlling their actions. Their abnormal behaviour includes incoherence and lack of will. In this book an explanation of these baffling signs and symptoms is provided using the framework of cognitive neuropsychology. The cognitive abnormalities that underlie these signs and symptoms suggest impairment in a system which constructs and monitors representations of certain abstract (especially mental) events in consciousness. For example, schizophrenic patients can no longer construct representations of their intentions to act. Thus, if actions occur, these will be experienced as coming out of the blue and hence can seem alien. The patient who lacks awareness of his own intentions will stop acting spontaneously and hence will show a lack of will. The psychological processes that are abnormal in schizophrenia can be related to underlying brain systems using evidence from human and animal neuropsychology. Interactions between prefrontal cortex and other parts of the brain, especially temporal cortex appear critical for constructing the contents of consciousness. It is these interactions that are likely to be impaired in schizophrenia.
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Product Details

  • ISBN-13: 9781317716235
  • Publisher: Taylor & Francis
  • Publication date: 6/3/2014
  • Series: Essays in Cognitive Psychology
  • Sold by: Barnes & Noble
  • Format: eBook
  • Pages: 184
  • File size: 3 MB

Table of Contents

Prologue
1 The Nature of Schizophrenia 1
What is schizophrenia 1
Problems with diagnosis 7
Classifying signs and symptoms 9
Explaining schizophrenia or explaining symptoms? 12
2 Brain Abnormalities in Schizophrenia 15
The dopamine theory of schizophrenia 16
Structural brain changes in schizophrenia 21
Is schizophrenia a neurodegenerative disease? 23
3 Linking the Mind and the Brain 25
Some philosophical problems 25
Problems in studying psychological impairments in schizophrenia 31
Linking psychological abnormalities with brain dysfunction 34
A neuropsychology of schizophrenia 37
4 Behavioural Abnormalities 41
Negative and Positive signs 41
How do the behavioural abnormalities of schizophrenia relate to the brain? 53
Brain systems underlying the selection of action 61
5 Positive Symptoms, Abnormal Experiences 65
Hallucinations 68
Delusions 77
Does a single cognitive deficit underlie all positive symptoms? 84
The brain systems associated with positive symptoms 84
6 Communication in Schizophrenia 95
Disorders of action 101
Abnormalities of self-monitoring 104
Abnormalities in the awareness of others 106
Brain and language 108
Conclusions 112
7 Schizophrenia as a Disorder of Self-Awareness 113
Explaining the signs and symptoms of schizophrenia 113
What is metarepresentation? 115
Metarepresentation and schizophrenia 124
Metarepresentation and the brain 126
Conclusions 133
Appendices 135
References 139
Author Index 157
Subject Index 165
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