Hallucinations in medical conditions

Differentiating hallucination proneness dimensions through resting state alpha dynamics

The paper identifies distinct neural dynamics in resting state alpha band activity associated with different dimensions of hallucination proneness.

Reduced susceptibility to experimentally-induced complex visual hallucinations with age

This study finds that older adults report fewer complex visual hallucinations than younger adults in an experimental setting, suggesting reduced hallucination proneness with age.

Exploring Neural Dynamics in Self-Voice Processing and Perception: Implications for Hallucination Proneness.

The paper investigates how altered sensory feedback processing and attention control relate to hallucination proneness by manipulating self-voice quality and measuring neural responses.

Thalamocortical interactions reflecting the intensity of flicker light-induced visual hallucinatory phenomena

This study investigates how rhythmic flicker light stimulation affects thalamocortical connectivity and visual hallucinations in healthy participants.

Impaired motor-to-sensory transformation mediates auditory hallucinations

The paper investigates how impaired motor-to-sensory transformation contributes to auditory hallucinations by analyzing EEG data from schizophrenic patients with and without hallucinations.

Hallucination proneness alters sensory feedback processing in self-voice production

The paper investigates how hallucination proneness affects sensory feedback processing during self-voice production using EEG, finding altered N1 and N2 responses related to emotional voice quality and attention.

Modelling Phenomenological Differences in Aetiologically Distinct Visual Hallucinations Using Deep Neural Networks

This paper uses deep neural networks to model and generate synthetic visual hallucinations that reflect distinct phenomenological characteristics of different aetiologies.

Flicker light stimulation induces thalamocortical hyperconnectivity with LGN and higher-order thalamic nuclei

This study uses flicker light stimulation and fMRI to show that it increases thalamocortical connectivity between LGN, visual areas, and higher-order thalamic nuclei, correlating with visual hallucination intensity.

Robotically-induced auditory-verbal hallucinations: combining self-monitoring and strong perceptual priors

This paper develops a robotic procedure to induce auditory-verbal hallucinations in healthy individuals, supporting both self-monitoring and strong perceptual priors theories.

Changes in both top-down and bottom-up effective connectivity drive visual hallucinations in Parkinson's disease

This study uses spectral dynamic causal modelling to show that visual hallucinations in Parkinson's disease are linked to reduced bottom-up and increased top-down effective connectivity in the visual network.

Mind-wandering in Parkinson’s disease hallucinations reflects primary visual and default network coupling

This study finds that Parkinson’s disease patients with visual hallucinations show increased mind-wandering and stronger coupling between the primary visual cortex and default network.

Aberrant perceptual judgements on speech-relevant acoustic features in hallucination-prone individuals

The paper investigates how hallucination-prone individuals perceive speech-like acoustic features, finding they down-weight speech-typical low frequencies and prioritize high frequencies, with confidence influenced by hallucination proneness and schizotypy.

Meta-analytic evidence for the plurality of mechanisms in transdiagnostic structural MRI studies of hallucination status

This paper identifies distinct neuroanatomical patterns of gray matter changes associated with hallucination status in psychiatric versus neurodegenerative disorders through meta-analyses and systematic reviews.

Changes in structural network topology correlate with severity of hallucinatory behaviour in Parkinson’s disease

The paper investigates how structural network topology changes correlate with hallucinatory behavior severity in Parkinson’s disease using graph theory and connectivity analysis.

Accumulation of sensory evidence is impaired in Parkinson’s disease with visual hallucinations

This study uses a hierarchical drift diffusion model to show that Parkinson’s disease patients with visual hallucinations have slower sensory evidence accumulation, suggesting impaired bottom-up processing and increased reliance on top-down influences.