Publications by authors named "E H Buder"
We investigated how neural oscillations code the hierarchical nature of stress rhythms in speech and how stress processing varies with language experience. By measuring phase synchrony of multilevel EEG-acoustic tracking and intra-brain cross-frequency coupling, we show the encoding of stress involves different neural signatures (delta rhythms = stress foot rate; theta rhythms = syllable rate), is stronger for amplitude vs. duration stress cues, and induces nested delta-theta coherence mirroring the stress-syllable hierarchy in speech.
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- - We studied how brain waves (neural oscillations) relate to the way stress is structured in speech and how this processing differs based on language experience, particularly focusing on English and Mandarin.
- - Our findings indicate that stress processing involves distinct brain wave patterns (delta for stress foot rate and theta for syllable rate), with stronger responses to stress cues based on amplitude rather than duration, and a hierarchical relationship between these rhythms.
- - The research highlights that native English speakers show a greater ability to synchronize with stress patterns in speech, while language experience influences how effectively the brain integrates these rhythms, suggesting a combination of bottom-up and top-down processing in understanding speech.
Article Synopsis
- Research indicates that brain activity aligns with the natural rhythm of speech sounds (around 4-5 Hz), which helps with processing both what we hear and how we talk.
- The study measured brain responses (EEG) to speech and compared them to how individuals produced speech rhythms, finding that hearing speech influences motor output, especially at 4.5 Hz.
- Results show a strong connection between how well people perceive speech rhythms and how accurately they produce them, suggesting that the systems for hearing and speaking work together at this specific rhythm.
Surrounding context influences speech listening, resulting in dynamic shifts to category percepts. To examine its neural basis, event-related potentials (ERPs) were recorded during vowel identification with continua presented in random, forward, and backward orders to induce perceptual warping. Behaviorally, sequential order shifted individual listeners' categorical boundary, versus random delivery, revealing perceptual warping (biasing) of the heard phonetic category dependent on recent stimulus history.
View Article and Find Full Text PDFAutomated Detection of Stressful Conversations Using Wearable Physiological and Inertial Sensors.
Proc ACM Interact Mob Wearable Ubiquitous Technol
December 2020
Stressful conversation is a frequently occurring stressor in our daily life. Stressors not only adversely affect our physical and mental health but also our relationships with family, friends, and coworkers. In this paper, we present a model to automatically detect stressful conversations using wearable physiological and inertial sensors.
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