The initiative to the guideline development and implementation was taken by PT managers within the county council, who perceived a variation in physical therapy practice and therefore a need for evidence-based practice guidelines.
The crucial point is that what has not been shown so far is that listeners perceive the variation in the sound quality of fricatives directly as a variation in aperiodic pitch.
Going beyond this basic relevance, evidence is provided here that listeners perceive the variation in the sound quality of fricatives indeed as a variation in aperiodic pitch, even if they were not explicitly asked to do so (i.e., unlike in the study of [27]).
The only evidence that listeners can perceive the variation in the sound quality of fricatives literally as "segmental intonation" comes from the study of Heeren [27].
In summary, previous studies gathered converging cross-linguistic evidence that listeners can perceive the variation in the sound quality of fricatives that is caused by the F0 context and for which Niebuhr [25] introduced the term "segmentation intonation".
This should enable U. capricornis to perceive the variation in colour pattern in both females (Figure 8a) and males (Figure 8b).
Panel members emphasised that criteria may not provide definitive answers, instead indicating potential problems that might need addressing, due to a perceived unacceptable variation in care.
For example, L2 speakers of a language who are not entirely familiar with the coarticulatory patterns of that language cannot (fully) subtract the corresponding variation and hence still perceive the coarticulatory variation in speech sounds.
The attack, and the apparent impulse behind it--that a violent man was made uncomfortable by a even a perceived variation on gender-normative behavior--is exactly what makes transgender and gender-variant Americans among the most vulnerable segment of the population, and children who even appear gender-variant are the most vulnerable of all.
In addition to the ability to perceive variation in colour pattern, an individual's colour pattern needs to be relatively stable over time to function as an individual identifier, as colour changes may result in misidentification.
That is, this 'data centric' perspective needs to be complemented by a 'modelling perspective' where distribution is perceived as variation from an ideal model (pp. 70-71).
