“…Although the examples cited here are of disease processes that directly affect the swallowing mechanism, other swallowing problems may result from various pathological conditions that indirectly affect swallow-ing functions. Conditions known to adversely affect swallowing include cerebrovascular infarcts (Buchholz, 1994;Lugger, 1994;Negus, 1994), tetanus (Chao et al, 1991), Sjogren's syndrome (Caruso, Sonies, Atkinson, & Fox, 1989;Erlichman, 1990), Parkinson's disease (Athlin, Norberg, Axelsson, Moller, & Nordstrom, 1989;Bird, Woodward, Gibson, Phyiand, & Fonda, 1994;Blonsky et al, 1975), Alzheimer's disease (Horner, Alberts, Dawson, & Cook, 1994), and "unexplained" neurogenic dysphagia (Buchholz, 1994).…”