The experience of hallucinations is a hallmark of psychotic disorders, but they are also present in other psychiatric and medical conditions, and may be reported in nonclinical individuals. Despite the increased number of studies probing the incidence of nonclinical hallucinations, the underlying phenomenological characteristics are still poorly understood. This study aimed to examine the psych...

OBJECTIVES To examine the occurrence of hallucinations and delusions in Alzheimer's disease over a 4 year period and their association with rate of cognitive decline. METHODS A cohort of 410 persons with clinically diagnosed Alzheimer's disease underwent annual clinical evaluations over a 4 year period. Participation in follow up exceeded 90% in survivors. Evaluations included structured info...

INTRODUCTION Auditory hallucinations are defined as experiences of auditory perceptions in the absence of a provoking external stimulus. They are the most prevalent symptoms of schizophrenia with high capacity for chronicity and refractoriness during the course of disease. The transcranial direct current stimulation (tDCS) - a safe, portable, and inexpensive neuromodulation technique - has emer...

The prevalence of schizophrenia among hearing impaired is nearly equal to that of the general population [1]. Both bilateral and unilateral auditory hallucinations in hearing impaired are thought to predispose them to develop schizophrenia [2]. Auditory hallucinations in patients with normal hearing may inadequately respond to antipsychotic medication [3]. There is no report that hallucinations...

An intelligent schizophrenic whose fictitious name was Jonathan Lang hallucinated for more than 8 years. His coping behaviour included analysing the aspects of hallucinations, analysing the inter-relation between varieties of hallucinations, studying the relations of hallucinations to environmental variables, physiological states .ind psychological factors, experimenting on the production of ha...

BACKGROUND Auditory verbal hallucinations are a characteristic symptom in schizophrenia. Recent causal models of auditory verbal hallucinations propose that cognitive mechanisms involving verbal working memory are involved in the genesis of auditory verbal hallucinations. Thus, in the present study, we investigate the hypothesis that verbal working memory is a specific factor behind auditory ve...