arXiv subjects

Christopher Timmermann

Publications and source records attributed to Christopher Timmermann.

3 recordsLinked to original sources

arXiv2026

Past Psychedelic Use Predicts Divergent Thinking

Psychedelics have shown potential in treating a range of mental health conditions, yet far less is known about their impact on creativity. This study examined three components of creativity-divergent thinking, cognitive reflection, and insight in a large sample (N = 5,905) from the Great British Intelligence Test. We compared performance between individuals with past psychedelic use and those without such use. Psychedelic users scored significantly higher on divergent thinking than both non-drug users and drug users who had not used psychedelics. However, they did not score higher on measures of cognitive reflection, number of insights, or insight accuracy. These findings suggest that naturalistic psychedelic use may be associated with enhanced divergent thinking, but not enhanced insight-related performance. Future research should aim to establish causality through prospective designs and controlled studies incorporating long-term follow-up, biological data, and personality structure assessment.

q-bio.NC↗

arXiv2025

How to set up a psychedelic study: Unique considerations for research involving human participants

Setting up a psychedelic study can be a long, arduous, and kafkaesque process. This rapidly-developing field poses several unique challenges for researchers, necessitating a range of considerations that have not yet been standardised. Many of the complexities inherent to psychedelic research also challenge existing assumptions around, for example, approaches to psychiatric prescribing, the conceptual framing of the placebo effect, and definitions of selfhood. This review paper brings together several of the major psychedelic research teams across the United Kingdom to formalise these unique considerations, identify continuing areas of debate, and provide a practical, experience-based guide, with recommendations for policymakers and future researchers intending to set up a psychedelic research study or clinical trial. We approach this such that the paper can either be read end to end, or treated as a manual: readers can dip into relevant sections as needed.

q-bio.NC↗

arXiv2024

The age of spiritual machines: Language quietus induces synthetic altered states of consciousness in artificial intelligence

How is language related to consciousness? Language functions to categorise perceptual experiences (e.g., labelling interoceptive states as 'happy') and higher-level constructs (e.g., using 'I' to represent the narrative self). Psychedelic use and meditation might be described as altered states that impair or intentionally modify the capacity for linguistic categorisation. For example, psychedelic phenomenology is often characterised by 'oceanic boundlessness' or 'unity' and 'ego dissolution', which might be expected of a system unburdened by entrenched language categories. If language breakdown plays a role in producing such altered behaviour, multimodal artificial intelligence might align more with these phenomenological descriptions when attention is shifted away from language. We tested this hypothesis by comparing the semantic embedding spaces from simulated altered states after manipulating attentional weights in CLIP and FLAVA models to embedding spaces from altered states questionnaires before manipulation. Compared to random text and various other altered states including anxiety, models were more aligned with disembodied, ego-less, spiritual, and unitive states, as well as minimal phenomenal experiences, with decreased attention to language and vision. Reduced attention to language was associated with distinct linguistic patterns and blurred embeddings within and, especially, across semantic categories (e.g., 'giraffes' become more like 'bananas'). These results lend support to the role of language categorisation in the phenomenology of altered states of consciousness, like those experienced with high doses of psychedelics or concentration meditation, states that often lead to improved mental health and wellbeing.

q-bio.NC↗