Advertisement

Topics

Auditory awareness negativity is an electrophysiological correlate of awareness in an auditory threshold task.

08:00 EDT 28th March 2019 | BioPortfolio

Summary of "Auditory awareness negativity is an electrophysiological correlate of awareness in an auditory threshold task."

One theory of visual awareness proposes that electrophysiological activity related to awareness occurs in primary visual areas approximately 200 ms after stimulus onset (visual awareness negativity: VAN) and in fronto-parietal areas about 300 ms after stimulus onset (late positivity: LP). Although similar processes might be involved in auditory awareness, only sparse evidence exists for this idea. In the present study, we recorded electrophysiological activity while subjects listened to tones that were presented at their own awareness threshold. The difference in electrophysiological activity elicited by tones that subjects reported being aware of versus unaware of showed an early negativity about 200 ms and a late positivity about 300 ms after stimulus onset. These results closely match those found in vision and provide convincing evidence for an early negativity (auditory awareness negativity: AAN), as well as an LP. These findings suggest that theories of visual awareness are also applicable to auditory awareness.

Affiliation

Journal Details

This article was published in the following journal.

Name: Consciousness and cognition
ISSN: 1090-2376
Pages: 70-78

Links

DeepDyve research library

PubMed Articles [4506 Associated PubMed Articles listed on BioPortfolio]

Neural correlates of visual awareness at stimulus low vs. high-levels of processing.

A crucial view in the graded vs. dichotomous debate on visual awareness proposes that its graded or dichotomous nature may depend on the depth of stimulus processing (or level of processing) associate...

Different Associations between Auditory Function and Cognition Depending on Type of Auditory Function and Type of Cognition.

Previous studies strongly suggest that declines in auditory threshold can lead to impaired cognition. The aim of this study was to expand that picture by investigating how the relationships between ag...

Event-related potentials associated with auditory attention capture in younger and older adults.

A deviant-related negativity (DRN), mismatch negativity (MMN), and P3a are electrophysiological measures thought to reflect processes involved in the involuntary switching of attention to a task-irrel...

The effects of working memory load on visual awareness and its electrophysiological correlates.

Consciousness and working memory (WM) have been thought to be closely related, but their exact relationship has remained unclear. The present study focused on the question whether visual awareness, th...

Effect of auditory-motor training on auditory processing of school children.

To compare performance in Avaliação Simplificada do Processamento Auditivo Central and Scale of Auditory Behaviors scores before and after auditory and motor training.

Clinical Trials [2482 Associated Clinical Trials listed on BioPortfolio]

Evaluation of the Global Auditory Nerve Activity for Exploration of Hearing in Humans

To date, all the electrophysiological methods for auditory testing rely on the measure on synchronous evoked auditory nerve activity. This measure only takes into account the response of t...

Role of the Auditory Efferent System in Auditory Perceptual Learning

The purpose of this study is to determine how changes in speech perception resulting from a computerized auditory training program are related to concurrent changes in auditory brainstem f...

A Study of Human Multi-Sensory Integration

The primary aim of this study is to determine whether spatiotemporal characteristics of multisensory evoked potentials can be used as a marker of consciousness (awareness) under anesthesia...

Auditory Neuropathy and Cochlear Implants

The electrical stimulation generated by the Cochlear Implant (CI) may improve the neural synchrony and hence contribute to the development of auditory skills in patients with Auditory Neur...

The Analgesic Effect of Auditory Inputs and Its Relation to Psychological and Neurobiological Mechanisms

The study investigates the analgesic effect of different auditory inputs. Employing a within-subject design, the study includes healthy participants that are exposed to thermal stimuli whi...

Medical and Biotech [MESH] Definitions

Loss of sensitivity to sounds as a result of auditory stimulation, manifesting as a temporary shift in auditory threshold. The temporary threshold shift, TTS, is expressed in decibels.

An auditory brainstem structure in the pontine tegmentum that contains several nuclei associated with auditory localization and is component of ascending and descending auditory pathways.

Disorders of hearing or auditory perception due to pathological processes of the AUDITORY PATHWAYS in the CENTRAL NERVOUS SYSTEM. These include CENTRAL HEARING LOSS and AUDITORY PERCEPTUAL DISORDERS.

Acquired or developmental cognitive disorders of AUDITORY PERCEPTION characterized by a reduced ability to perceive information contained in auditory stimuli despite intact auditory pathways. Affected individuals have difficulty with speech perception, sound localization, and comprehending the meaning of inflections of speech.

A psychological state of awareness, the practices that promote this awareness, a mode of processing information and a character trait. As a therapy mindfulness is defined as a moment-to-moment awareness of one's experience without judgment and as a state and not a trait.

Advertisement
Quick Search
Advertisement
Advertisement

 


DeepDyve research library

Relevant Topics

Hearing
Hearing, auditory perception, or audition is the ability to perceive sound by detecting vibrations, changes in the pressure of the surrounding medium through time, through an organ such as the ear. Sound may be heard through solid, liquid, or gaseous mat...

Multiple Sclerosis MS
Multiple sclerosis (MS) is the most common disabling neurological condition affecting 100,000 young adults in the UK. The condition results from autoimmune damage to myelin, causing interference in nerve signaling. Symptoms experienced depend on the pa...


Searches Linking to this Article