Event-Related Potentials and Auditory Signal Detection: Their Diurnal Variation for Morning-Type and Evening-Type Subjects

In everyday life, people interact with each others through verbal communication but also by spontaneous beat gestures which are a very important part of the paralinguistic context during face-to-face conversations. Nonetheless, their role and neural correlates have been seldom addressed. Here we investigate the time course of beat-speech integration in natural speech perception conditions. We measured event-related potentials to words pronounced with or without an accompanying beat gesture while participants attended to a political speech. When the speaker was on sight, words pronounced with a beat gesture elicited appositive shift in ERPs at early sensory (before 100 ms) and at a later time window coinciding with the auditory component P2. This result remained partially true even when the auditory signal was removed from audiovisual signal. Interestingly, there was no difference with words pronounced without gesture when participants listened to the same speech passage without viewing of the speaker. We conclude that in a naturalistic speech context, beat gestures are integrated with speech early on in time and modulate the sensory/phonological levels of processing. We propose that these results suggest a possible role of beats as a highlighter, helping direct the focus of attention of the listener on important information, rather than adding information per se. Beat gestures would modulate how verbal information is treated.

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Time-of-Day Preference, Pattern Evoked Potentials, and Hemispheric Asymmetries: A Preliminary Statement

Perceptual and Motor Skills ◽

10.2466/pms.1986.63.2.413 ◽

1986 ◽

Vol 63 (2) ◽

pp. 413-414 ◽

Cited By ~ 7

Author(s):

Alberto Zani

Keyword(s):

Steady State ◽

Significant Interaction ◽

Event Related Potentials ◽

Time Of Day ◽

Pattern Reversal ◽

Hemispheric Asymmetries ◽

Related Potentials ◽

Pattern Evoked Potentials ◽

Hemispheric Functioning ◽

Morning Type

7 “morning-type” and 6 “evening-type” individuals were subjected to pattern reversal steady-state Event-related Potentials (ERPs) recording to obtain data with respect to time of day, diurnal typology, and hemispheric asymmetries. A significant interaction between these factors suggested a model of hemispheric functioning much more complex than suspected.

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Auditory Information Accelerates the Visuomotor Reaction Speed of Elite Badminton Players in Multisensory Environments

Frontiers in Human Neuroscience ◽

10.3389/fnhum.2021.779343 ◽

2021 ◽

Vol 15 ◽

Author(s):

Thorben Hülsdünker ◽

David Riedel ◽

Hannes Käsbauer ◽

Diemo Ruhnow ◽

Andreas Mierau

Keyword(s):

Visual Information ◽

Visual Stimulation ◽

Visual Stimuli ◽

Event Related Potentials ◽

Visual Signal ◽

Auditory Signal ◽

Auditory Information ◽

Multisensory Stimulation ◽

Related Potentials ◽

Reaction Speed

Although vision is the dominating sensory system in sports, many situations require multisensory integration. Faster processing of auditory information in the brain may facilitate time-critical abilities such as reaction speed however previous research was limited by generic auditory and visual stimuli that did not consider audio-visual characteristics in ecologically valid environments. This study investigated the reaction speed in response to sport-specific monosensory (visual and auditory) and multisensory (audio-visual) stimulation. Neurophysiological analyses identified the neural processes contributing to differences in reaction speed. Nineteen elite badminton players participated in this study. In a first recording phase, the sound profile and shuttle speed of smash and drop strokes were identified on a badminton court using high-speed video cameras and binaural recordings. The speed and sound characteristics were transferred into auditory and visual stimuli and presented in a lab-based experiment, where participants reacted in response to sport-specific monosensory or multisensory stimulation. Auditory signal presentation was delayed by 26 ms to account for realistic audio-visual signal interaction on the court. N1 and N2 event-related potentials as indicators of auditory and visual information perception/processing, respectively were identified using a 64-channel EEG. Despite the 26 ms delay, auditory reactions were significantly faster than visual reactions (236.6 ms vs. 287.7 ms, p < 0.001) but still slower when compared to multisensory stimulation (224.4 ms, p = 0.002). Across conditions response times to smashes were faster when compared to drops (233.2 ms, 265.9 ms, p < 0.001). Faster reactions were paralleled by a lower latency and higher amplitude of the auditory N1 and visual N2 potentials. The results emphasize the potential of auditory information to accelerate the reaction time in sport-specific multisensory situations. This highlights auditory processes as a promising target for training interventions in racquet sports.

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Estimation of Human Signal Detection Performance from Event-Related Potentials Using Feed-Forward Neural Network Model

Computer Intensive Methods in Control and Signal Processing ◽

10.1007/978-1-4612-1996-5_17 ◽

1997 ◽

pp. 271-281 ◽

Cited By ~ 2

Author(s):

Miloš Koska ◽

Roman Rosipal ◽

Artur König ◽

Leonard J. Trejo

Keyword(s):

Neural Network ◽

Signal Detection ◽

Network Model ◽

Neural Network Model ◽

Event Related Potentials ◽

Detection Performance ◽

Feed Forward Neural Network ◽

Feed Forward ◽

Related Potentials ◽

Human Signal

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A Neurophysiological Measure of Reward Sensitivity and its Limited Association with Anhedonia in Adolescents and Young Adults

10.1101/467217 ◽

2018 ◽

Author(s):

David W. Frank ◽

Elise M. Stevens ◽

Francesco Versace

Keyword(s):

Young Adults ◽

Signal Detection ◽

Response Bias ◽

Event Related Potentials ◽

Detection Task ◽

Reward Sensitivity ◽

Adolescents And Young Adults ◽

Related Potentials ◽

Hedonic Capacity ◽

Signal Detection Task

AbstractAnhedonia (i.e., the attenuated ability to enjoy pleasurable stimuli) characterizes multiple mood disorders, but its neurophysiological underpinnings are not yet clear. Here, we measured event-related potentials in 116 adolescents and young adults engaged in a signal detection task designed to objectively characterize the anhedonic phenotype. In line with previous studies, the behavioral results showed that approximately 35% of the sample did not develop a response bias towards the more frequently rewarded stimuli (a sign of low hedonic capacity). The event-related potentials (ERPs) evoked by the reward feedback stimuli delivered during the task showed that individuals that did not develop a response bias had significantly less cortical positivity at Fz from 224 ms to 316 ms post feedback onset compared to those that developed a response bias during the task. However, further analyses showed that this between groups difference was relatively weak, as it disappeared when we controlled for response-locked ERPs. Furthermore, the response bias observed in the signal detection task was not strongly associated with self-reported ratings of hedonic capacity. We conclude that even though the signal detection task may be used as a reward sensitivity measure in neurotypical adolescents and young adults, this task may only be able to detect clinically significant levels of anhedonia in this particular population.

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