Group	ID	Gender	Dysarthria type	Dysarthria severity	Deviant perceptual speech characteristics
MSDYS	2	F	Flaccid	Mild	Imprecise consonants, breathy
MSDYS	5	F	Spastic–ataxic	Mild–moderate	Irregular articulatory breakdown, imprecise consonants, breathy, strained–strangled, hypernasal, pitch breaks, audible inspiration, forced expiration
MSDYS	6	F	Spastic–ataxic	Mild	Irregular articulatory breakdown, imprecise consonants, harsh/strained, hypernasal, variable rate
MSDYS	19	F	Ataxic	Mild	Imprecise consonants, vowels distorted, low pitch, slow rate
MSDYS	23	F	Spastic–ataxic	Mild	Imprecise consonants, hypernasal, voice tremor, slow rate
MSDYS	26	F	Spastic	Moderate	Imprecise consonants, harsh/strained, low pitch
MSDYS	55	F	Ataxic	Mild	Imprecise consonants, harsh, slow rate
MSDYS	56	F	Spastic	Moderate	Strained–strangled, harsh, slow rate
MSDYS	12	M	Flaccid–spastic	Mild	Imprecise consonants, hypernasality, audible inspiration, nasal emission, variable rate
MSDYS	17	M	Spastic–ataxic	Mild–moderate	Irregular articulatory breakdown, imprecise consonants, harsh, hypernasal, monopitch, low pitch, slow rate
MSDYS	33	M	Ataxic	Mild–moderate	Irregular articulatory breakdown, imprecise consonants, phonemes prolonged, harsh
MSDYS	48	M	Spastic–ataxic	Mild	Imprecise consonants, irregular articulatory breakdown, strained–strangled, variable rate
MSDYS + CI	4	F	Spastic	Mild–moderate	Irregular articulatory breakdown, breathy, strained–strangled, voice tremor, pitch breaks, variable rate, short phrases
MSDYS + CI	13	F	Spastic–ataxic	Moderate	Irregular articulatory breakdown, imprecise consonants, vowels distorted, breathy, strained–strangled, intervals prolonged, slow rate
MSDYS + CI	14	F	Ataxic	Mild	Irregular articulatory breakdown, imprecise consonants
MSDYS + CI	39	F	Spastic–ataxic	Mild–moderate	Irregular articulatory breakdown, imprecise consonants, harsh, inappropriate silences, slow rate, short phrases
MSDYS + CI	51	F	Ataxic	Moderate	Imprecise consonants, insufficient loudness, slow rate
MSDYS + CI	53	F	Ataxic	Mild	Imprecise consonants, harsh, voice tremor, slow rate
MSDYS + CI	57	F	Spastic	Mild–moderate	Irregular articulatory breakdown, imprecise consonants, harsh, hypernasality, slow rate
MSDYS + CI	62	F	Ataxic	Mild–moderate	Irregular articulatory breakdown, imprecise consonants, harsh, slow rate, short phrases
MSDYS + CI	15	M	Spastic	Mild	Imprecise consonants, strained–strangled, pitch breaks, hyponasality, variable rate
MSDYS + CI	29	M	Spastic–ataxic	Mild	Irregular articulatory breakdown, imprecise consonants, strained–strangled, harsh
MSDYS + CI	30	M	Spastic–ataxic	Mild	Irregular articulatory breakdown, imprecise consonants, strained–strangled
MSDYS + CI	49	M	Spastic–ataxic	Mild	Imprecise consonants, monoloudness, insufficient loudness, slow rate

Note. MSDYS = MS group with dysarthria and intact cognition; MSDYS + CI = MS group with dysarthria and cognitive impairment; F = female; M = male.