diff --git a/comm/talks/2024-baap/images/life-cycle.png b/comm/talks/2024-baap/images/life-cycle.png new file mode 100644 index 0000000..0dfe3d4 Binary files /dev/null and b/comm/talks/2024-baap/images/life-cycle.png differ diff --git a/comm/talks/2024-baap/index.html b/comm/talks/2024-baap/index.html index 620b265..79804c1 100644 --- a/comm/talks/2024-baap/index.html +++ b/comm/talks/2024-baap/index.html @@ -345,16 +345,22 @@

Is vowel duration the product of gestural timing alone? Data f

Intrinsic vowel duration

-
-

Distance to travel = duration

+
+

Distance to target = duration

[Figure from Ladefoged 1996.]

On the distance hypothesis, see for example Turk et al 1994.

+
+

+
+

Acoustics (F1) as a proxy for distance to target

+
+

(A) Distance hypothesis

-

Full mediation

+

Full mediation (the effect of vowel is fully mediated by F1)

Phonologisation

@@ -363,7 +369,8 @@

Phonologisation

When the speaker gains control over a mechanical/physiological process (and the process “enters the phonetics” of the language).

–Bermúdez-Otero 2013

-
+ +

Phonologisation of intrinsic duration

@@ -372,20 +379,26 @@

Phonologisation of intrinsic duration

(B) Phonologisation hypothesis

-

No mediation

+

No mediation (vowel and F1 independently affect duration)

Process scattering

Process scattering

-

Process (or rule) scattering is the scenario in which the same process coexists in two different levels of language.

+

Process (or rule) scattering is the scenario by which a process coexists in multiple levels of the language.

–Bermúdez-Otero 2013

+
+
+

Process scattering (revised)

+

Process scattering is the scenario by which two versions of the same process coexist in the language, either in the same level or in consecutive levels.

+
+

(C) Process scattering hypothesis

-

Partial mediation

+

Partial mediation (vowel has a direct and mediated effect on duration)

Hypotheses

@@ -425,8 +438,8 @@

Methods

-
-

Hypotheses (revisited)

+
+

Hypotheses (rep.)

In a model with vowel and F1 as predictors:

    @@ -465,15 +478,15 @@

    Interpretation

-

The results are compatible with the (c) Partial Mediation hypothesis.

+

The results are compatible with the (c) Partial Mediation hypothesis (Process Scattering).

This means that:

    -
  • Each vowel must have a duration target.

  • -
  • Distance to target explains duration within each vowel category.

  • +
  • Each vowel must have its own duration target.

  • +
  • Within each vowel category, distance to target further modulates duration.

diff --git a/comm/talks/2024-baap/index.qmd b/comm/talks/2024-baap/index.qmd index b228521..20c102b 100644 --- a/comm/talks/2024-baap/index.qmd +++ b/comm/talks/2024-baap/index.qmd @@ -14,7 +14,7 @@ filters: ![](images/intrinsic.png){fig-align="center"} -## Distance to travel = duration +## Distance to target = duration ![](images/eke-aka-01.png){fig-align="center"} @@ -22,11 +22,17 @@ filters: On the distance hypothesis, see for example Turk et al 1994. +## {background-color="var(--inverse)"} + +::: f1 +**Acoustics (F1) as a proxy for distance to target** +::: + ## (A) Distance hypothesis ![](images/dag-a.png){fig-align="center"} -**Full mediation** +**Full mediation** (the effect of vowel is fully mediated by F1) ## Phonologisation @@ -38,6 +44,8 @@ When the speaker gains control over a mechanical/physiological process (and the --Bermúdez-Otero 2013 ::: +![](images/life-cycle.png){fig-align="center"} + ## Phonologisation of intrinsic duration ![](images/intrinsic-phonologised.png){fig-align="center" width="256"} @@ -48,23 +56,31 @@ When the speaker gains control over a mechanical/physiological process (and the ![](images/dag-b.png){fig-align="center"} -**No mediation** +**No mediation** (vowel and F1 independently affect duration) ## Process scattering ::: box-note **Process scattering** -Process (or rule) scattering is the scenario in which the same process coexists in two different levels of language. +Process (or rule) scattering is the scenario by which a process coexists in multiple levels of the language. --Bermúdez-Otero 2013 ::: +. . . + +::: box-tip +**Process scattering (revised)** + +Process scattering is the scenario by which two versions of the same process coexist in the language, either in the same level or in consecutive levels. +::: + ## (C) Process scattering hypothesis ![](images/dag-c.png){fig-align="center"} -**Partial mediation** +**Partial mediation** (vowel has a direct and mediated effect on duration) ## Hypotheses @@ -108,7 +124,7 @@ Process (or rule) scattering is the scenario in which the same process coexists - Bayesian models fitted with [brms](https://paul-buerkner.github.io/brms/) (Bürkner 2017, 2018, 2021) in R (R Core Team 2024). ::: -## Hypotheses (revisited) +## Hypotheses (rep.) ::: box-warning In a model with vowel and F1 as predictors: @@ -145,7 +161,7 @@ In a model with vowel and F1 as predictors: . . . ::: box-tip -**The results are compatible with the (c) Partial Mediation hypothesis.** +**The results are compatible with the (c) Partial Mediation hypothesis (Process Scattering).** ::: . . . @@ -153,8 +169,7 @@ In a model with vowel and F1 as predictors: ::: box-note This means that: -- Each vowel must have a duration target. +- Each vowel must have its **own duration target**. -- Distance to target explains duration within each vowel category. +- Within each vowel category, **distance to target further modulates duration**. ::: -