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

Table 2

Variables measured in this study: swallowing variables.

Variable	Description
Pharyngeal transit time	Time from first frame of movement of the bolus into the oropharynx to when the tail of the bolus passes the level of cervical vertebra 4.
Interswallow interval	Time between the onset of two consecutive swallows.
Swallow rate	Ratio of number of swallows to duration of feeding bout.
Swallow onset delay	Time between maximum gape of previous jaw cycle and onset of swallow inserted within that cycle. Categorised by jaw cycle type (chewing or biting/ingestion).