Philip Robert Corlett

Does Interacting With Artificial Intelligence Cause Delusions?

Philip Robert Corlett

This article implores clinicians to consider whether artificial intelligence models may induce delusionlike beliefs—and how to help overcome this phenomenon.

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Misidentification Delusion Contents and Aberrant Prediction Errors in the General Population

Martin Meyer, Deanna Greco, Constance Lubinski, Philip Robert Corlett

Misidentification delusions – e.g., "My partner is an impostor” – occur most strikingly in rare neuropsychological cases, which are relatively immune to empirical study. Theorizing from these cases augurs commitments to a modular mental ontology. But what if misidentification beliefs were common? …

Misidentification Delusion Contents and Aberrant Prediction Errors in the General Population

Deanna Greco, Philip Robert Corlett, Constance Lubinski, Martin Meyer

Misidentification delusions – e.g., "My partner is an impostor” – occur most strikingly in rare neuropsychological cases, which are relatively immune to empirical study. Theorizing from these cases augurs commitments to a modular mental ontology. But what if misidentification beliefs were common? …

The effect of monetary versus point-based rewards on effort-cost decision making in individuals at clinical high risk for psychosis

Zachary Anderson, Victor Pokorny, Joshua Kenney, James M. Gold et autres

OBJECTIVE: The dissemination of inexpensive computerized behavioral tasks indexing amotivation may enhance the assessment of clinical high risk (CHR) across settings. However, the impact of varying reward value in such tasks is unclear. If point-based rewards engage participants, this could improve the …

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Longitudinal Associations Between Volatility Priors and Delusions in Individuals Recovering From an Acute Psychotic Episode

Julia M. Sheffield, Lauren M. Hall, Jinyuan Liu, Essence Leslie et autres

BACKGROUND: Computational psychiatry has revealed latent aspects of cognition that relate to psychiatric symptoms. Yet, to understand their clinical utility, it must be known whether these computational parameters contribute to symptom severity in a traitlike (stable) or statelike (dynamic) manner. Mounting evidence …

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Excessive switching in OCD and paranoia arises from different deficits in belief-updating

Charlotte M. Freeland, Santiago Castiello, Praveen Suthaharan, Christopher Pittenger et autres

Both obsessions and paranoia are characterized by cognitive inflexibility, particularly in uncertain environments. Differential diagnosis can be challenging and depends on clinical interviews and self-report symptom questionnaires. We predicted that obsessions and paranoia would be associated with distinct suboptimal choice behavioral patterns …

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Factor Analysing Predictive Processing: No Evidence for a General Factor Across Tasks

Chantal Miller-Silva, Franziska Knolle, Andrea Greve, Franciska de Beer et autres

Abstract Background & Hypothesis Dysfunctional predictive processing (PP), specifically the aberrant weighting of priors, is a frequently-proposed mechanism for psychosis and psychosis-like phenomena (schizotypy). Evidence for this theory mostly originates from single-task studies, which assume that all tasks load onto a single …

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Value representation in youth psychopathology: evidence of a transdiagnostic risk mechanism for psychosis

Zachary B. Millman, James M. Gold, Jason Eric Schiffman, Lauren M. Ellman et autres

Negative symptoms of schizophrenia are associated with deficits in representing the value of actions, observed in reinforcement learning (RL) tasks as impaired learning from gains but intact learning from losses. This RL profile contrasts with depression, where enhanced loss sensitivity is common. …

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On the fixed nature of delusions

George E. Chapman, Philip Robert Corlett, Stephen M. Fleming, Robert J. Howard

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Modifying Belief Updating and Paranoia with Group Based Song-Making

Deanna Greco, Sandy Camilo, Santiago Castiello, Charlotte M. Freeland et autres

Background: Paranoia—believing that others intend harm—is a distressing feature of psychosis that shapes people’s interpretations of experiences and interactions with the environment. Predictive processing accounts of paranoia posit that these paranoid beliefs arise from aberrations in belief updating in which overly precise …

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Modifying Belief Updating and Paranoia with Group Based Song-Making

Julia Nachemson, Adam Christoferson, Deanna Greco, Philip Robert Corlett et autres

Background: Paranoia—believing that others intend harm—is a distressing feature of psychosis that shapes people’s interpretations of experiences and interactions with the environment. Predictive processing accounts of paranoia posit that these paranoid beliefs arise from aberrations in belief updating in which overly precise …

Anhedonia and Anxious Arousal Are Associated With Distinct Expectations About the Statistics of a Volatile Environment

Jessica M. Duda, Tyrone D. Cannon, Samuel Paskewitz, William Chung Palmer et autres

Background: The brain is believed to construct a generative model of the environment, updated via differences between predictions and incoming sensory evidence (i.e., prediction errors). Uncertainty can arise at multiple levels, including when estimating the environment's causal structure (stochasticity; first order), the …

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