Among 20 university students, writing with a glove showed no clear effect on immediate recall, while increased writing pressure reduced recall with about 85–88% probability

Increased writing pressure (kinaesthetic intensity) was associated with reduced immediate recall, whereas reduced tactile sensitivity (glove use) alone showed no clear effect. Prior work on handwriting and memory mostly compared handwriting with typing or added supplementary visual feedback; this study separates the tactile and kinaesthetic dimensions within one 2x2 design. Bayesian binomial regression: about 85% probability of reduced recall for pressure plus glove (Bayes factor 5.83) and about 88% for pressure only (Bayes factor 7.1), described by the authors as moderate evidence; glove only showed a small positive effect (0.21, 95% CI -0.69 to 1.14) with a Bayes factor of 0.5. The sample was 20 university students, with 4 to 6 per group.

Neither mental effort nor perceived workload was found to mediate the effects of the haptic manipulations on recall. The study fitted a Bayesian multivariate model that included dual-task reaction time and NASA-TLX to test mediation paths, rather than only reporting main effects. All indirect and direct paths had 95% credible intervals including zero; the authors report a 63% probability that perceived workload negatively mediates the pressure effect and an 85% probability that mental effort positively mediates the glove effect, both uncertain.

All groups performed relatively well on the 10-item immediate recall test, with the control group averaging about 82% correct (95% CI 70% to 91%). This aligns with the cited work finding only weak evidence for psychomotor aspects on cognitive learning, suggesting that in a structured text-copying task the haptic manipulations may not have caused cognitive overload. Posterior predictive checks placed the observed mean of 7.8 at the center of the model's simulated means (Bayesian p about 0.5), which the authors take as good fit.

The results apply to right-handed German-native university students copying a structured geology text on a tablet with a stylus and taking an immediate recall test; the authors note this setting was chosen to test handwriting effects without repetition. For designers, it suggests that wearable sensors such as glove-like devices may not clearly harm immediate recall in similar handwriting tasks, offering preliminary guidance for multimodal immersive learning environments and handwriting training tools; the authors also mention such technology could support automated diagnosis and training for handwriting difficulties such as dysgraphia.

The authors note the sample was only 20 participants and that despite Bayesian analysis the posteriors remain uncertain; the recall task used a structured text excerpt rather than lists of unrelated words, and no baseline knowledge pre-test was conducted; touch and movement were each manipulated in only one direction (reduced touch, increased pressure), with no reverse manipulations; and the NASA-TLX questionnaire used 14 categories instead of 15, which the authors say may affect the instrument's reliability. In addition, all 95% credible intervals in the mediation analysis included zero, so whether mental effort and perceived workload truly play a mediating role remains an open question.