0 relating to the crown (= top part) of the head
1 relating to the crown (= the part oustide the gum) of the tooth
The intrusive j is superscripted to show that the preceding coronals are palatalized.
Consequently, dorsals are more difficult to voice than coronals.
Stops followed by non-coronals should be more difficult than stops followed by coronals.
Consonants followed by coronals were not identified any better than consonants followed by non-coronals.
Interestingly, however, the results show that releases are most important for dorsals, followed by coronals and then labials.
An additional ' sharp ' locus subdivides coronals into anterior (dental) vs. posterior (postalveolar, palatal) sounds, at least for some whistlers.
Additional constraints are required to account for the fact that back vowels are not fronted after these coronals.
Here the generalisations extend beyond coronals and apply to stops at all places of articulation.
