title: Which variability?
abstract: Drai and Grodzinsky provide a valuable analysis that offers a way of disentangling the effects of Movement and Mood in agrammatic comprehension. However, their mathematical implementation (Beta model) hides theoretically relevant information, i.e., qualitative heterogeneities of performance within the patient sample. This heterogeneity is crucial in the variability debate.
authors.affiliation: University of Pavia, Italy. alessio.toraldo@unipv.it
authors.forename: Alessio
authors.initials: A
authors.lastname: Toraldo
authors.forename: Claudio
authors.initials: C
authors.lastname: Luzzatti
mesh_terms: D001039:Aphasia, Broca / Q000175:diagnosis* / Q000503:physiopathology; D001921:Brain / Q000503:physiopathology; D003072:Cognition Disorders / Q000175:diagnosis; D006801:Humans; D008037:Linguistics / Q000379:methods; D009483:Neuropsychological Tests; D013067:Speech Perception