Heart rate response to non-signal tones

non-corrective approach to pronunciation

the aim of this study has been to find answers for the following questions: 1. what is the effect of immediate correction on students pronunciation errors? 2. what would be the effect of teaching the more rgular patterns of english pronunciation? 3. is there any significant difference between the two methods of dealing with pronuciation errore, i. e., correction and the teaching of the regular ...

Tones and non-tones in Kammu dialects

This is apreliminary report on the phonetic interaction of tone and consonant voicing in K m u , a language where some dialects use Fo for producing distinctive word tones, while others do not have tones but rely on the contrastive voicing of initial consonants to distinguish words which tonal dialects distinguishes with tones. Speakers of non-tonal dialects produce no significant Fo diflerence...

Signal Processing Methods for Heart Rate Variability

Area asymmetry of heart rate variability signal

BACKGROUND Heart rate fluctuates beat-by-beat asymmetrically which is known as heart rate asymmetry (HRA). It is challenging to assess HRA robustly based on short-term heartbeat interval series. METHOD An area index (AI) was developed that combines the distance and phase angle information of points in the Poincaré plot. To test its performance, the AI was used to classify subjects with: (i) a...

The effect of heart rate on the heart rate variability response to autonomic interventions

Heart rate variability (HRV), the beat-to-beat variation in either heart rate (HR) or heart period (R-R interval), has become a popular clinical and investigational tool to quantify cardiac autonomic regulation. However, it is not widely appreciated that, due to the inverse curvilinear relationship between HR and R-R interval, HR per se can profoundly influence HRV. It is, therefore, critical t...