Penumbral thoughts: Contents of consciousness upon waking

PLoS One. 2023 Dec 14;18(12):e0289654. doi: 10.1371/journal.pone.0289654. eCollection 2023.

Abstract

Thoughts shape our experience, choice, and behaviour throughout the day. Yet the content of 'penumbral thoughts'-first thoughts upon waking-has received very little research attention. Across seven independent samples (total N = 829), we used recall and reflection methods, solicited the same day, to understand what individuals think as they regain consciousness. These penumbral thoughts show remarkable thematic consistency: individuals were most likely to reflect on their somatic or psychological state, focus on temporal orientation, and prioritise waking actions. Survey results demonstrate that temporal and spatial orientation are dominated by the current time and the day ahead, rather than the past or other future timescales. Our results provide some insight into the order of priority in consciousness. We conclude that establishing one's temporal position is important to the daily process of 'rebooting' conscious awareness.

MeSH terms

  • Attention*
  • Consciousness*
  • Humans
  • Mental Recall
  • Time

Grants and funding

The authors gratefully acknowledge financial support from a British Academy Mid-Career Fellowship (MD19\190023) to RJ (https://www.thebritishacademy.ac.uk), from a Leverhulme Trust Research Fellowship (RF-2020-448\10) to RJ (https://www.thebritishacademy.ac.uk), and from the Research Infrastructure and Investment Fund (RIIF) from the (University Department) to MMG and JGS. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.