Catriona M Steele

..Physical sampling of these two products enabled clinicians to reliably perceive relative viscosity and density differences between the nectar- and honey-thick items...

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..Otherwise, the present analysis failed to find empirical evidence of significant modulations in tongue behaviors across the thin to honey-thick consistency range...

..We propose that future research should explore the degree to which swallowing improvements are obtained from treatment protocols that emphasize these tasks...

..As well, the findings show that aging does influence the nature of tongue motions, in particular by inducing a more extreme distinction in the variability of movements for speech (less variable) and swallowing (more variable) tasks...

..To explore the influence of taste and trigeminal irritation (chemesthesis) on durational aspects of tongue movement in liquid swallowing, controlling for the influence of perceived taste intensity...

..These findings suggest that an ANN, multi-sensor fusion approach to segmentation is worthy of further investigation in swallowing studies...

..Natural variations in chin tuck angles across individuals may contribute to the differential effectiveness of the technique...

..However, participant age did affect the baseline spectral characteristics. These findings are important to the further development of diagnostic devices based on dual-axis swallowing vibration signals...

..However, observations of abnormal postswallow voice quality can be misleading and are not a valid indication that penetration-aspiration or dysphagia exists...

..In this study, differences were explored between younger and older healthy women in execution of the effortful swallowing maneuver through a comparative analysis of effortful and noneffortful swallows...

..This evidence supports the idea that different segments of the tongue couple with the jaw as a synergy for swallowing, but can modify their coupling relationship to accommodate task demands...

..Efficient swallows require well-coordinated tongue movements during bolus flow, but little is known about such movements in Parkinson's disease...

..These results are important for the further development of medical devices based on dual-axis swallowing accelerometry signals...

..The available evidence suggests that exercise-based approaches to swallowing rehabilitation do succeed in changing muscle strength and function, but generalization to true swallowing tasks may be somewhat limited...

..Furthermore, the only published attempt at automatic classification in adult patients has been based on a small sample of swallowing vibrations...

..Given the limited sample size, our results should be interpreted with caution and replication studies with larger sample sizes are warranted...

..05). Older participants and participants with higher BMIs exhibited swallows with significantly longer (p=0.05) duration than younger participants and those with lower BMIs, respectively...

..In addition, changes were quantified in healthy tongue movements in response to specific differences in the nature of the swallowing task (discrete vs. sequential swallows)...

..Potential sources of variation were identified, including statistical, methodological, stimulus-related, and participant-related sources...

..In the current investigation, the authors sought to confirm whether tongue-palate pressures are modulated between discrete swallows of water and nectar-thick juice...

..These results encourage further development of medical devices for the detection of swallowing difficulties...

..Trends emerged for factors of bolus size and participant age for some variables. Other potential sources of variability are discussed...

..An ideal alternative would be an automated abnormal swallow detection methodology based on non-invasive signals...

..Transit times were significantly longer for older participants than younger participants. We recommend matching radiopaque bolus size in videofluoroscopy to the patient's habitually preferred sip mass for comparator nonopaque liquids...

..A variety of features were extracted in the time and time-frequency domains after swallow segmentation and pre-processing. A separate Friedman test was conducted for each feature and for each swallowing task...

..The experimental treatment protocol holds promise as a rehabilitative tool for various dysphagia populations...

..No gender or age effects were found on statistical persistence of either vibration axes. Future developments of cervical accelerometry-based medical devices should actively mitigate the effects of head movement...

..6-6.8 ml). This difference far exceeded the magnitude of sip-size variation observed between instructed drinking tasks using different stimuli and as a function of participant's gender or age group...

..MMG may serve as an alternative measure of muscle activity during swallowing and further investigation is warranted...

..Future developments in the field should attempt to remove signal components associated with strong statistical persistence, as they tend to be associated with non-swallowing phenomena...

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..By synthesizing the current state of research evidence and knowledge, we identify continuing gaps in our knowledge of these mechanisms and pose questions for future research...

..We conclude that accelerometry can be used to support valid, reliable, and efficient detection of aspiration risk in patients with suspected dysphagia...

..The idea of launching political initiatives aimed at increasing awareness and the utilization of appropriate dysphagia healthcare codes was also discussed...

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..In this paper, we examine the spectral characteristics of dual-axis cervical accelerometry signals in the absence of swallowing but in the presence of head motions...

..To evaluate the influence of tongue-to-palate pressures on submental muscle contraction and oral and pharyngeal pressure dynamics during effortful swallowing maneuver...