Sounds generated by one’s own action elicit attenuated brain responses compared to brain responses to identical sounds that are externally-generated. The present study tested whether the suppression effect indexed by the event-related potential (ERP) components of N100 and P200 is larger when self-generated sounds are correctly predicted than when they are not. Furthermore, sounds violating a p...

Identifiable nonspeech sounds were paired with spoken words. In Experiment 1, words preceded by related sounds yielded faster lexical decision times than those preceded by unrelated sounds. In Experiment 2, subjects were presented with sound/word and word/sound pairs while event-related potentials were recorded. Words preceded by related sounds elicited smaller N400 components than those preced...

Work by Agus and colleagues in this issue of Neuron defines a human mechanism for the rapid learning of novel noises. The noises do not have a verbal label, and are stored accurately for weeks.

In this paper, we propose a robust classification method for lung sounds contaminated with heart sounds in order to distinguish between healthy subjects and abnormal patients with pulmonary emphysema. We previously developed a classification procedure based on a maximum-likelihood approach by using hidden Markov models (HMMs). However, contaminated heart sounds caused difficulties in achieving ...

© 2015 ETRI Journal, Volume 37, Number 4, August 2015 http://dx.doi.org/10.4218/etrij.15.0114.1447 Heart sounds are the main obstacle in lung sound analysis. To tackle this obstacle, we propose a diagnosis algorithm that uses singular spectrum analysis (SSA) and frequency features of heart and lung sounds. In particular, we introduce a frequency coefficient that shows the frequency difference b...

The similarity between spontaneous "pistol-shot" sounds heard over large vessels and the Korotkoff sounds heard distal to a partially inflated blood pressure cuff suggests that a similar mechanism is responsible for their occurrence. Simultaneous records of intravascular pressures and of the sounds demonstrate that the sounds generally precede the major rise in intravascular pressure. These obs...

'Soundscape' refers to how individuals or groups of people perceive sounds. This study focuses on whether and what extent companion factors, compared with other demographic influence the various aspects soundscape evaluation. Two kinds factors are studied here: one is status, social relationship intensity between companions. Based a questionnaire statistical analysis, both found evaluations soc...