Effort investment during listening varies as a function of task demand and motivation. Several studies have manipulated both these factors to elicit measure changes in effort associated with listening. The cardiac pre-ejection period (PEP) is relatively novel the field cognitive hearing science. This measure, which reflects sympathetic nervous system activity on heart, has previously been implemented tone discrimination but not speech-in-noise task. Therefore, primary goal this study was...

Mental disorder is a change of mental or behavioral pattern that causes sufferings and impairs the ability to function in ordinary life. In psychopathology, assessment methods contain various types uncertainties associated with signs symptoms. This study identifies method addresses issue uncertainty assessing disorder. The fuzzy logic knowledge representation schema can address linguistic terms including ambiguity, imprecision, vagueness. However, incapable addressing due ignorance,...

Certain cardiovascular measures allow for distinction between sympathetic and parasympathetic nervous system activity. Applied during listening, these may provide a novel complementary insight into listening effort. To date, few studies have implemented of effort seldom included hearing-impaired participants. These generally measured changes in parameters while manipulating environmental factors, such as difficulty. Yet, is also known to be moderated by individual including the importance...

In this study, the morphology of PPG signal has been analyzed to be a potential cardiovascular marker for physiological stress. The was quantified as quality index by comparing template beat (extracted from resting conditions) beats recorded during vigorous physical activity. Data taken eight subjects where they performed some activities ranging low high intensity. It found that, mean and standard deviation correlation coefficient between non-stress condition annotated beat, 89.43±5.17 (%)...

People with hearing impairment typically have difficulties following conversations in multi-talker situations. Previous studies shown that utilizing eye gaze to steer audio through beamformers could be a solution for those Recent in-ear electrodes capture electrooculography the ear (EarEOG) can estimate eye-gaze relative head, when head was fixed. The movement estimated using motion sensors around create an of absolute room. In this study, experiment designed mimic situation order study and...

The hypothesis of the study is that Torsades de pointes (TdP) history can be better identified using T-wave morphology compared to Fridericia-corrected QT interval (QTcF) at baseline. ECGs were recorded baseline and during sotalol challenge in 20 patients with a TdP (+TdP) 16 without previous (-TdP). QTcF combination score (MCS) calculated. At baseline, there was no significant difference between groups (+TdP: = 446 ± 9 ms; -TdP: 431 ms, P 0.27). In contrast, MCS significantly different 1.07...

In this paper, the effect of atmospheric turbulence on bit error probability in free-space multi-carrier optical CDMA (MC-OCDMA) scheme with Sequence Inverse Keyed(SIK) correlator receiver is analyzed. Here Intensity Modulation considered for transmission. The induced fading described by newly introduced gamma-gamma pdf[1] as a tractable mathematical model turbulence. Results are evaluated Gold and Kasami code it shown that sequence can be used more efficient transmission than an channel....

The fertilized chicken egg (embryonic chicken) shares the basic mechanism of electrophysiology and ionic currents with mammalian hearts.However, little is known about cardiac repolarization process during embryo growth.We examined if electrocardiographic QT interval was dependent on stage embryonic development.ECGs were recorded from 4 eggs for 6 days (day 13 to day 18).Eggs kept in an incubator a temperature 37.4°C.Chronic electrodes implanted 5-minute ECG each day.Three measurements made...

In daily life, both acoustic factors and social context can affect listening effort investment. laboratory settings, information about has been deduced from pupil cardiovascular responses independently. The extent to which these measures jointly predict listening-related is unknown. Here we combined features contextual aspects of speech perception. Data were collected 29 adults (mean = 64.6 years, SD 9.2) with hearing loss. Participants performed a perception task at two individualized...

Objectives: Listening effort is moderated by not only task difficulty, but also success importance. In real communication scenarios, importance varies based upon the social context. However, in laboratory, it can be challenging to manipulate context without compromising experimental control. Outside of hearing sciences, studies have applied virtual reality (VR) incorporate a controlled and repeatable manner. Several these demonstrated that manipulations VR reliably elicit changes...

We propose a single sensor-based activity classification method where the Poincare plot was introduced to analyze variance of angle between acceleration vector with gravity calculated from raw accelerometer data for human classification. Two datasets named ‘Human Activity Recognition’ and ‘MHealth dataset’ were used develop model classify low vigorous intensity activities posture estimation. Short-term long-term variability analyzing property according vibrational body movement. Commercially...

Introduction: By means of adding more sensor technology, modern hearing aids (HAs) strive to become better, personalized, and self-adaptive devices that can handle environmental changes cope with the day-to-day fitness users. The latest HA technology available in market already combines sound analysis motion activity classification based on accelerometers adjust settings. While there is a lot research tracking using sports applications consumer electronics, not yet much research. Objective:...

In this paper a new model of Multi-Carrier Code Division Multiple Access (MC-CDMA) RAKE receiver has been proposed for multipath fading mitigation based on maximum ratio combining diversity. The analytical verified considering Rayleigh channel. simulation results substantiate that the MC-CDMA provides better immunity to and offers improved Bit Error Rate (BER) performance than conventional receiver.

In this paper a composite analytical model of DS-CDMA wireless communication system considering multipath Nakagami fading along with Doppler frequency shift, tracking jitter, local oscillator offset and multi-access interference (MAI) for different PN sequences is presented. The analysis presents the development novel approach to find pdf (probability density function) signal plus noise ratio (SINR) at output Rake receiver combined influence fading, timing jitter etc maximal combining (MRC)...

In this paper an analytical model of a MC-DS-CDMA with TF-domain spreading for wireless communication system spatial diversity considering channel fading, Doppler shift, multi-access interference (MAI) along AWGN is presented. The analysis presents novel approach to the development expression signal plus noise ratio (SINR) fading and shift SISO (single input single output) system. also extended SIMO multiple maximal combining (MRC) scheme probability density function (pdf) output MRC...