Abstract

The study of action verb processing in Parkinson’s disease (PD) represents a promising approach to identify specific neurocognitive biomarkers (Birba et al., 2017; Cardona et al., 2013; García et al., 2020; García & Ibáñez, 2018). We appreciate Holm Møller et al.’s effort to replicate and extend our original study (Garcia et al., 2018), which showed that Spanishspeaking PD patients without mild cognitive impairment (PD-nMCI) were selectively impaired in processing actions evoked by naturalistic narratives. This finding reinforced the widely reported observation that motor-system alterations undermine grasping of verbal units denoting bodily motion (García & Ibáñez, 2018). Yet, Holm Møller et al. failed to replicate such a finding on a Danish-speaking cohort when using partly similar action and non-action texts (AT, nAT) and additional materials. Holm Møller et al.’s effort is timely, as cross-linguistic studies represent a crucial milestone for cognitive research on PD (Calvo, Ibáñez, Muñoz, & García, 2018; García & Orozco- Arroyave, 2021), especially when focused on action verbs (Birba et al., 2017; Calvo et al., 2018). This is all the more valuable when discrepant outcomes arise. Juxtaposed to García et al.’s findings, Holm Møller et al.’s negative results motivate relevant methodological, typological, epistemological, and meta theoretical considerations, as detailed next.