Impaired self-monitoring and abnormalities of cognitive bias have been implicated as cognitive mechanisms of hallucination; regions fundamental to these processes including inferior frontal gyrus (IFG) and superior temporal gyrus (STG) are abnormally activated in individuals that hallucinate. A recent study showed activation in IFG-STG to be modulated by auditory attractiveness, but no study ha...

Earlier experiments have suggested impaired auditory perception in patients with schizophrenia. The purpose of the present study was to investigate auditory discrimination in young adults varying in schizotypal features. Three hundred and forty-nine female adolescent subjects were rated with the Schizotypal Personality Questionnaire (SPQ) and the Perceptual Aberration Scale (PAS) and with quest...

Abstract Auditory hallucinations are common and distressing symptoms of the schizophrenia disease. It is commonly treated with pharmacological approaches but, unfortunately, such an approach not effective in all patients. In cases which use antipsychotic drugs possible or recommended, psychotherapeutic interventions used to help patients gain power control against hearing voices. Recently, virt...

INTRODUCTION Ear plugging (placing fingers in or covering the ears) is a clinical seizure semiology that has been described as a response to an unformed, auditory hallucination localized to the superior temporal neocortex. The localizing value of ear plugging in more complex auditory hallucinations may have more involved circuitry. We report on one child, whose aura was a more complex auditory ...

A resurgence of interest in inner speech as a core feature of human experience has not yet coincided with methodological progress in the empirical study of the phenomenon. The present article reports the development and psychometric validation of a novel instrument, the Varieties of Inner Speech Questionnaire (VISQ), designed to assess the phenomenological properties of inner speech along dimen...

Thirty untreated urban living Schizophrenics fulfilling the criteria of Feigher et al. (1972) and having Schneiderian hallucinations were studied with the aim of examining the relation of certain variables to their behaviour during auditory hallucinations. For those whose behaviour had no direction, the voices were less real in comparison to those with positive or negative direction. For those ...

OBJECTIVE Synchronization of neural activity preceding self-generated actions may reflect the operation of the forward model, which acts to dampen sensations resulting from those actions. If this is true, pre-action synchrony should be related to subsequent sensory suppression. Deficits in this mechanism may be characteristic of schizophrenia and related to positive symptoms, such as auditory h...

Recent MRI studies have shown that schizophrenia is characterized by reductions in brain gray matter, which progress in the acute state of the disease. Cortical circuitry abnormalities in gamma oscillations, such as deficits in the auditory steady state response (ASSR) to gamma frequency (>30-Hz) stimulation, have also been reported in schizophrenia patients. In the current study, we investigat...

Using functional MRI, we investigated reality monitoring for auditory information. During scanning, healthy young adults heard words in another person's voice and imagined hearing other words in that same voice. Later, outside the scanner, participants judged words as "heard," "imagined," or "new." An area of left middle frontal gyrus (Brodmann's area, or BA, 6) was more active at encoding for ...

Introduction. Ear plugging (placing fingers in or covering the ears) is a clinical seizure semiology that has been described as a response to an unformed, auditory hallucination localized to the superior temporal neocortex. The localizing value of ear plugging in more complex auditory hallucinations may have more involved circuitry. We report on one child, whose aura was a more complex auditory...