Ben Alderson‐Day
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View article: Experiences of felt presence in first episode psychosis
Experiences of felt presence in first episode psychosis Open
Felt presence (FP) – sensing another person without clear sensory evidence – has been described in psychosis for over a century but rarely studied due to challenges in recognition and assessment. Recently FP has been identified as a transd…
View article: Cognitive-Developmental Mechanisms in Hallucinations
Cognitive-Developmental Mechanisms in Hallucinations Open
Hallucinations figure prominently in a range of psychiatric disorders but, to date, their developmental origins are not well understood. The aim of the present article is to explore how ideas from mainstream developmental psychology can en…
View article: Delusions by design? How everyday AIs might be fuelling psychosis (and what can be done about it)
Delusions by design? How everyday AIs might be fuelling psychosis (and what can be done about it) Open
Large language models (LLMs) are poised to become a ubiquitous feature of our lives, mediating communication, decision-making and information curation across nearly every domain. Within psychiatry and psychology the focus to date has remai…
View article: Auditory verbal hallucinations: The ins and outs of subtypes
Auditory verbal hallucinations: The ins and outs of subtypes Open
The detailed coding process developed to map AVH subtypes advances our theoretical understanding relevant to the development of clinical interventions and provides a systematic research basis for future explorations in larger studies. More…
View article: Delusions by design? How everyday AIs might be fuelling psychosis (and what can be done about it)
Delusions by design? How everyday AIs might be fuelling psychosis (and what can be done about it) Open
Large language models (LLMs) are poised to become a ubiquitous feature of our lives, mediating communication, decision-making and information curation across nearly every domain. Within psychiatry and psychology the focus to date has remai…
View article: Delusions by design? How everyday AIs might be fuelling psychosis (and what can be done about it)
Delusions by design? How everyday AIs might be fuelling psychosis (and what can be done about it) Open
Large language models (LLMs) are poised to become a ubiquitous feature of our lives, mediating communication, decision-making and information curation across nearly every domain. Within psychiatry and psychology the focus to date has remai…
View article: Delusions by design? How everyday AIs might be fuelling psychosis (and what can be done about it)
Delusions by design? How everyday AIs might be fuelling psychosis (and what can be done about it) Open
Large language models (LLMs) are poised to become a ubiquitous feature of our lives, mediating communication, decision-making and information curation across nearly every domain. Within psychiatry and psychology the focus to date has remai…
View article: Delusions by design? How everyday AIs might be fuelling psychosis (and what can be done about it)
Delusions by design? How everyday AIs might be fuelling psychosis (and what can be done about it) Open
Large language models (LLMs) are poised to become a ubiquitous feature of our lives, mediating communication, decision-making and information curation across nearly every domain. Within psychiatry and psychology the focus to date has remai…
View article: Delusions by design? How everyday AIs might be fuelling psychosis (and what can be done about it)
Delusions by design? How everyday AIs might be fuelling psychosis (and what can be done about it) Open
Large language models (LLMs) are poised to become a ubiquitous feature of our lives, mediating communication, decision-making and information curation across nearly every domain. Within psychiatry and psychology the focus to date has remai…
View article: Early auditory impairments as a candidate marker of attenuated sensory symptoms of psychosis
Early auditory impairments as a candidate marker of attenuated sensory symptoms of psychosis Open
Tone-matching may not serve as a reliable biomarker for CHR status but rather a risk marker for the emergence of early sensory manifestations.
View article: “Distress is probably the wrong word”: exploring uncertainty and ambivalence in non-clinical voice-hearing and the psychosis continuum
“Distress is probably the wrong word”: exploring uncertainty and ambivalence in non-clinical voice-hearing and the psychosis continuum Open
These results indicate that much of the experience of NCVHs may be missed by clinical measures and concepts, suggesting a need to approach them in ways that go beyond typical understandings of the psychosis continuum.
View article: Impacts of risk thresholds and age on clinical high risk for psychosis: a comparative network analysis
Impacts of risk thresholds and age on clinical high risk for psychosis: a comparative network analysis Open
One of the main goals for supporting people with a psychotic disorder is early detection and intervention, and the detection of Clinical High Risk (CHR) is a major challenge in this respect. This study sought to compare core symptoms of CH…
View article: Addressing the elephant in the screening room: an item response theory analysis of the Prodromal Questionnaire for at-risk symptoms of psychosis
Addressing the elephant in the screening room: an item response theory analysis of the Prodromal Questionnaire for at-risk symptoms of psychosis Open
This study identified the most indicative CHR-related symptoms for accurate assessment of psychosis severity, which can be used to guide targeted preventative interventions.
View article: Effects of a novel, brief psychological therapy (Managing Unusual Sensory Experiences) for hallucinations in first episode psychosis (MUSE FEP): Findings from an exploratory randomised controlled trial
Effects of a novel, brief psychological therapy (Managing Unusual Sensory Experiences) for hallucinations in first episode psychosis (MUSE FEP): Findings from an exploratory randomised controlled trial Open
Hallucinations are a common feature of psychosis, yet access to effective psychological treatment is limited. The Managing Unusual Sensory Experiences for First-Episode-Psychosis (MUSE-FEP) trial aimed to establish the feasibility and acce…
View article: The experience of felt presence in a general population sample
The experience of felt presence in a general population sample Open
Summary Felt presence is a widely occurring experience, but remains under-recognised in clinical and research practice. To contribute to a wider recognition of the phenomenon, we aimed to assess the presentation of felt presence in a large…
View article: The felt-presence experience: from cognition to the clinic
The felt-presence experience: from cognition to the clinic Open
The felt presence experience is the basic feeling that someone else is present in the immediate environment, without clear sensory evidence. Ranging from benevolent to distressing, personified to ambiguous, felt presence has been observed …
View article: Index
Index Open
This book follows a psychologist's quest to understand one of the most curious experiences known to humankind: the universal, disturbing feeling that someone or something is there when we are alone. What does this feeling mean and where do…
View article: The Felt Presence experience: From cognition to the clinic
The Felt Presence experience: From cognition to the clinic Open
The Felt Presence (FP) experience is the basic feeling that someone else is present in the immediate environment, without any other clear sensory evidence. Ranging from benevolent to distressing, personified to ambiguous, FP has been obser…
View article: Voices in Psychosis
Voices in Psychosis Open
This chapter introduces readers to the experience of hearing voices, to the Voices in Psychosis study conducted by Hearing the Voice, and to the aims and trajectories of this edited collection. The twenty-eight chapters in this volume enga…
View article: Voices in Context
Voices in Context Open
The Voices in Psychosis (VIP) study involved forty people who were hearing voices regularly and finding them distressing. All of the participants were service users of Early Intervention in Psychosis (EIP) services in two NHS Foundation Tr…
View article: Voice-Hearing Across The Continuum: A Phenomenology of Spiritual Voices
Voice-Hearing Across The Continuum: A Phenomenology of Spiritual Voices Open
Background and Hypothesis Voice-hearing in clinical and nonclinical groups has previously been compared using standardized assessments of psychotic experiences. Findings from several studies suggest that nonclinical voice-hearing is distin…
View article: Hallucinations as a risk marker for suicidal behaviour in individuals with a history of sexual assault: a general population study with instant replication
Hallucinations as a risk marker for suicidal behaviour in individuals with a history of sexual assault: a general population study with instant replication Open
Background Research has shown a strong relationship between hallucinations and suicidal behaviour in general population samples. Whether hallucinations also index suicidal behaviour risk in groups at elevated risk of suicidal behaviour, na…
View article: Managing Unusual Sensory Experiences in People with First-Episode Psychosis (MUSE FEP): a study protocol for a single-blind parallel-group randomised controlled feasibility trial
Managing Unusual Sensory Experiences in People with First-Episode Psychosis (MUSE FEP): a study protocol for a single-blind parallel-group randomised controlled feasibility trial Open
Introduction Hallucinations (hearing or seeing things that others do not) are a common feature of psychosis, causing significant distress and disability. Existing treatments such as cognitive–behavioural therapy for psychosis (CBTp) have m…
View article: Susceptibility to auditory hallucinations is associated with spontaneous but not directed modulation of top-down expectations for speech
Susceptibility to auditory hallucinations is associated with spontaneous but not directed modulation of top-down expectations for speech Open
Auditory verbal hallucinations (AVHs)—or hearing voices—occur in clinical and non-clinical populations, but their mechanisms remain unclear. Predictive processing models of psychosis have proposed that hallucinations arise from an over-wei…
View article: Continuities and Discontinuities in the Cognitive Mechanisms Associated With Clinical and Nonclinical Auditory Verbal Hallucinations
Continuities and Discontinuities in the Cognitive Mechanisms Associated With Clinical and Nonclinical Auditory Verbal Hallucinations Open
Auditory verbal hallucinations (AVHs) are typically associated with schizophrenia but also occur in individuals without any need for care (nonclinical voice hearers [NCVHs]). Cognitive models of AVHs posit potential biases in source monito…
View article: Learning to Discern the Voices of Gods, Spirits, Tulpas, and the Dead
Learning to Discern the Voices of Gods, Spirits, Tulpas, and the Dead Open
There are communities in which hearing voices frequently is common and expected, and in which participants are not expected to have a need for care. This paper compares the ideas and practices of these communities. We observe that these co…
View article: Thinking about hallucinations: why philosophy matters
Thinking about hallucinations: why philosophy matters Open
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 an…
View article: Voice-hearing across the continuum: a phenomenology of spiritual voices
Voice-hearing across the continuum: a phenomenology of spiritual voices Open
Voice-hearing in clinical and non-clinical groups has previously been compared using standardized assessments of psychotic experiences. Findings from several studies suggest that non-clinical voice-hearing (NCVH) is distinguished by reduce…