Cognitive Neuropsychiatry
July 1, 2025
Francesco Scaramozzino, Ryan Mckay, Nicholas Furl
1 citation
Psychotic-like experiences may reflect disrupted signal discrimination, whereby individuals overinterpret noisy sensory input as meaningful. Drawing on predictive coding accounts, we investigated whether increased sensory precision and reduced data-gathering relate to psychotic-like experiences in a signal discrimination task. We fitted drift-diffusion models to Random Dot Motion (RDM) task...
Cognitive Neuropsychiatry
April 10, 2022
Prabitha Urwyler, Marieke Begemann, Vaughan Bell
Hallucinations are deeply intriguing phenomena but conducting research on them can be challenging. Ineffable experiences can test the limits of traditional research methods and can rely on individu...
Cognitive Neuropsychiatry
2022
Sam Wilkinson, Huw Green, Stephanie M Hare et al.
8 citations
Introduction: Hallucinations research is increasingly incorporating philosophy or the work of philosophically trained individuals. We present three different ways in which this is successfully implemented to the enhancement of knowledge and understanding of hallucinations and related phenomena.Method: We review contributions from phenomenology, philosophy of cognitive science, and philosophy of...
Cognitive Neuropsychiatry
November 8, 2021
Emma Palmer‐cooper, Nicola Mcguire, Abigail C. Wright
6 citations
BACKGROUND: Unusual experiences in Tulpamancer and Autonomous Sensory Meridian Response (ASMR) communities are generally positive and sought after, unlike hallucinations and delusions in clinical populations. Metacognition, the ability to reflect on self-referential experiences, may aid sense-making around unusual experiences, reducing distress. This study investigated group differences in...
Cognitive Neuropsychiatry
February 27, 2018
Geoff Davies, Charlotte L. Rae, Sarah N. Garfinkel et al.
23 citations
INTRODUCTION: Metacognition, or "thinking about thinking", is a higher-order thought process that allows for the evaluation of perceptual processes for accuracy. Metacognitive accuracy is associated with the grey matter volume (GMV) in the prefrontal cortex (PFC), an area also impacted in schizophrenia. The present study set out to investigate whether deficits in metacognitive accuracy are...
Cognitive Neuropsychiatry
2014
P R Corlett, S V Canavan, L Nahum et al.
Dreams might represent a window on altered states of consciousness with relevance to psychotic experiences, where reality monitoring is impaired. We examined reality monitoring in healthy, non-psychotic individuals with varying degrees of dream awareness using a task designed to assess confabulatory memory errors - a confusion regarding reality whereby information from the past feels falsely...
Cognitive Neuropsychiatry
2003
Konstantine K. Zakzanis, Donald A. Young, Zachariah Campbell
22 citations
Introduction: Quantitative evidence has begun to emerge where human studies suggest that repeated recreational use of +/- 3,4-methylenedioxy-methamphetamine (MDMA or "Ecstasy") produces lasting impairments in explicit memory. The purpose of this investigation was to further explore the nature and pattern of component memory processes in abstinent MDMA users. Methods: Accordingly, 15 MDMA users...
Cognitive Neuropsychiatry
February 1, 1997
Peter Brugger, M Regard, Théodor Landis
Autoscopic phenomena involve the illusory reduplication of one's own body. The literature on the topic is widely scattered and suffers from considerable terminological and conceptual inconsistencies. This article proposes a classification scheme based on phenomenological criteria. Along with examples of illustrative cases, we outline the main features of autoscopic hallucinations, heautoscopy...