| 1 |
Acceptability of collecting speech samples from the elderly via the telephone
|
|
|
|
In: Digit Health (2021)
|
|
BASE
|
|
Show details
|
|
|
| 2 |
Applying speech technologies to assess verbal memory in patients with serious mental illness
|
|
|
|
BASE
|
|
Show details
|
|
|
| 3 |
24.4 MOVING SPEECH TECHNOLOGY METHODS OUT OF THE LABORATORY: PRACTICAL CHALLENGES AND CLINICAL TRANSLATION OPPORTUNITIES FOR PSYCHIATRY
|
|
|
|
BASE
|
|
Show details
|
|
|
| 5 |
An examination of the language construct in NIMH's research domain criteria: Time for reconceptualization!
|
|
|
|
BASE
|
|
Show details
|
|
|
| 6 |
What do we really know about blunted vocal affect and alogia? A meta-analysis of objective assessments
|
|
|
|
BASE
|
|
Show details
|
|
|
| 7 |
Deriving semantic structure from category fluency: clustering techniques and their pitfalls
|
|
|
|
BASE
|
|
Show details
|
|
|
| 8 |
The Evolution of the Exponent of Zipf's Law in Language Ontogeny
|
|
|
|
Abstract:
It is well-known that word frequencies arrange themselves according to Zipf's law. However, little is known about the dependency of the parameters of the law and the complexity of a communication system. Many models of the evolution of language assume that the exponent of the law remains constant as the complexity of a communication systems increases. Using longitudinal studies of child language, we analysed the word rank distribution for the speech of children and adults participating in conversations. The adults typically included family members (e.g., parents) or the investigators conducting the research. Our analysis of the evolution of Zipf's law yields two main unexpected results. First, in children the exponent of the law tends to decrease over time while this tendency is weaker in adults, thus suggesting this is not a mere mirror effect of adult speech. Second, although the exponent of the law is more stable in adults, their exponents fall below 1 which is the typical value of the exponent assumed in both children and adults. Our analysis also shows a tendency of the mean length of utterances (MLU), a simple estimate of syntactic complexity, to increase as the exponent decreases. The parallel evolution of the exponent and a simple indicator of syntactic complexity (MLU) supports the hypothesis that the exponent of Zipf's law and linguistic complexity are inter-related. The assumption that Zipf's law for word ranks is a power-law with a constant exponent of one in both adults and children needs to be revised.
|
|
Keyword:
Research Article
|
|
URL: http://www.ncbi.nlm.nih.gov/pubmed/23516390
https://doi.org/10.1371/journal.pone.0053227
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3596411
|
|
BASE
|
|
Hide details
|
|
|
| 10 |
An automated method to analyze language use in patients with schizophrenia and their first-degree relatives
|
|
|
|
BASE
|
|
Show details
|
|
|
|
|
