Bit of a random blog post, but sometimes my weird little hobbies and work coincide: How to build a watch to celebrate an academic milestone! www.dalmaijer.org/2026/10/maki...
Edwin Dalmaijer
@dalmaijer.bsky.social
826 followers 673 following 477 posts
Cognitive neuroscientist with many interests, including why our stomachs churn when we feel disgust. I also write books on programming; teach Python, statistics, and machine learning; and develop open-source software. www.dalmaijer.org
![Paragraph from Edgar et al. (2024, PLOS ONE): “The summarised studies mostly rely on self-report measures of disgust elicited by written or picture stimuli. Such self-report measures can have excellent psychometric properties, for example the internal consistency [6] and external agreement with others’ ratings [20] of the Three-Domain Disgust Scale, or the high test-retest reliability of self-reported disgust for images [12]. While experimental tasks are often less reliable than self-report measures [21], behavioural disgust avoidance measured in preferential looking tasks has excellent internal consistency, Spearman-Brown ρ = 0.81 to 0.94 and Cronbach’s α = 0.78 to 0.91 [22], and test-retest reliability equal to self-reported disgust ratings [12]. Behavioural disgust avoidance correlates with self-reported disgust sensitivity, R = 0.28 to R = 0.34 [12], and with self-reported disgust ratings for stimuli, R = 0.19 to 0.50 [22]. However, a major difference between self-report and behavioural measures of disgust avoidance is that self-reported disgust shows a very large (Cohen’s d = 1.25) placebo effect, whereas oculomotor avoidance (gaze dwell time) in preferential looking tasks only shows a small to medium (Cohen’s d = 0.44) effect [23].”](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:iu7zvx6efrmieiy7mgnuyane/bafkreiexf667vaec3svnan7pzgtomny3uve7fv5a63iabdpvtjvpoaqyiu)
