Evidence of Oropharyngeal Dysfunction in Feeding in the Rat Rotenone Model of Parkinson’s Disease

Table 1

Variables measured in this study: chewing variables.

Variable	Description
Mandible: dorsoventral range	Within a chewing cycle, maximum distance travelled in the dorsoventral (y) axis by the mandibular marker.
Mandible: rostrocaudal range	Within a chewing cycle, maximum distance travelled in the rostrocaudal (x) axis by the mandibular marker.
Duration of chewing cycle	Time elapsed from maximum gape to maximum gape.
Duration of jaw closing	Time elapsed from maximum gape to mimimum gape within a cycle.
Duration of power stroke	Time from minimum gape to rostralmost position of the mandible.
Tongue: dorsoventral range	Within a chewing cycle, maximum distance travelled in the dorsoventral (y) axis by the tongue marker.
Tongue: rostrocaudal range	Within a chewing cycle, maximum distance travelled in the rostrocaudal (x) axis by the tongue marker.
Time of tongue rostralmost position	Time from beginning of chewing cycle to tongue reaching its rostralmost position.
Relative timing of tongue and jaw	Time from the mandible reaching occlusion to the tongue reaching its rostralmost position.