João Veríssimo
jverissimo.bsky.social
João Veríssimo
@jverissimo.bsky.social
Assistant professor @ Uni of Lisbon. Psycholinguistics, lexicon/morphology, bilingualism, aging, statistics.
We welcome contributions on all aspects of word processing (submit by 23 Jan 2026)!

Very happy to announce these two fantastic keynotes:
- Davide Crepaldi @davidecrepaldi.bsky.social
- Jana Reifegerste
July 31, 2025 at 6:59 AM
maybe she's a proponent of the bootstrap-based method... 🤔
July 28, 2025 at 1:41 PM
Instead, better tone identification was predicted by pitch acuity. This suggests that domain-general auditory processing―not universal phonological principles―is a more important determinant.
June 16, 2025 at 6:24 PM
Preprint here: osf.io/preprints/ps...
(includes some goodies in the supp. materials, such as tips on speeding up model fitting.)
A gentle introduction to Bayesian statistics, with applications to bilingualism research
Bayesian analyses have been increasingly adopted in psychology and linguistics as an addition (or replacement) to traditional frequentist methods. However, Bayesian methods are not yet widely applied…
osf.io
May 24, 2025 at 4:19 PM
It's an intro to the foundational principles of Bayesian stats AND a practical tutorial on estimation and hypothesis testing using brms. I build up from simple regression to mixed-effects models.
May 24, 2025 at 4:19 PM
Interesting... Tried mgcv::rmvn() and mvnfast::rmvn(). Both seems to produce the same random numbers (with and without the perturbations in the cov matrix).
May 19, 2025 at 11:47 AM
right! mgcv can fit a binomial AR(1) model, but it's a little particular... you have to use bam() with discrete=T, for example (which, in turn, this precludes using something other than fREML)
May 5, 2025 at 11:08 PM
package in the works! for now, you can source "OnsetDetection_Functions_0.4.7.R" from here and see the get_onset() examples in the analyses of Studies 1 and 2: osf.io/9ethq/files/... (note that the function still has some limitations, e.g., it only handles 1 random factor)
OSF
osf.io
May 5, 2025 at 10:58 PM
Interesting! We do fit a logistic GAMM with (temporal) autocorrelation... but we don't address the spatial autocorrelation at all. In any case, I think it's compatible? Our innovation is using posterior simulations to obtain a temporal CI, but there is some freedom in terms of the model building.
May 5, 2025 at 10:41 PM
cool! we'd be super interested in hearing how well it works webcam VWP!
May 5, 2025 at 10:17 PM
We provide a user-friendly R function for researchers to implement our method! Get it here: osf.io/9ethq/files
OSF | A novel method for detecting the onset of experimental effects in visual world eye-tracking
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osf.io
May 5, 2025 at 9:22 PM
We formally evaluate a popular bootstrap-based method (Stone et al., 2021) and find that it can produce delayed estimates and inflated type I error rates. We propose a novel GAMM-based method that allows more accurate comparison of onsets between experimental conditions and/or speaker groups.
May 5, 2025 at 9:22 PM