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Related Concept Videos

Visual Agnosia01:12

Visual Agnosia

Visual agnosia is a condition characterized by the inability to recognize visually presented objects despite having normal vision. For instance, a person with visual agnosia can describe the shape and color of an object but cannot identify or name it. This impairment does not affect their visual field, acuity, color vision, brightness discrimination, language, or memory. An example of this condition in a social setting is someone at a dinner party asking for "that silver thing with a round end"...
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Parallel Processing

The brain processes sensory information rapidly due to parallel processing, which involves sending data across multiple neural pathways at the same time. This method allows the brain to manage various sensory qualities, such as shapes, colors, movements, and locations, all concurrently. For instance, when observing a forest landscape, the brain simultaneously processes the movement of leaves, the shapes of trees, the depth between them, and the various shades of green. This enables a quick and...

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Related Experiment Video

Updated: May 18, 2026

Using Rapid Serial Visual Presentation to Measure Set-Specific Capture, a Consequence of Distraction While Multitasking
05:58

Using Rapid Serial Visual Presentation to Measure Set-Specific Capture, a Consequence of Distraction While Multitasking

Published on: August 29, 2018

Capture of visual attention interferes with multisensory speech processing.

Hanna Krause1, Till R Schneider, Andreas K Engel

  • 1Department of Neurophysiology and Pathophysiology, University Medical Center Hamburg-Eppendorf Hamburg, Germany.

Frontiers in Integrative Neuroscience
|September 14, 2012
PubMed
Summary
This summary is machine-generated.

Distracting audiovisual speech captures attention, slowing reaction times and increasing neural responses to irrelevant stimuli. This highlights how salient, non-relevant speech signals can involuntarily draw focus in complex listening environments.

Keywords:
EEGSSVEPbimodalcrossmodaloscillatory

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Last Updated: May 18, 2026

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Investigating the Deployment of Visual Attention Before Accurate and Averaging Saccades via Eye Tracking and Assessment of Visual Sensitivity

Published on: March 18, 2019

Area of Science:

  • Neuroscience
  • Cognitive Science
  • Auditory Perception

Background:

  • Understanding how the brain filters distracting auditory and visual information during speech comprehension is crucial.
  • Neural mechanisms underlying attentional capture by irrelevant stimuli, especially audiovisual speech, remain unclear.

Purpose of the Study:

  • To investigate how distracting speech and non-speech stimuli affect the processing of attended audiovisual speech.
  • To examine the neural basis of attentional capture by salient distractors using high-density electroencephalography (EEG).

Main Methods:

  • Utilized high-density EEG to measure steady-state visual evoked potentials (SSVEP) as an index of visual attention.
  • Participants performed an audiovisual speech detection task with varying distraction conditions from flanking speakers.
  • Manipulated flanking speakers' stimuli to include audiovisual speech, lip movements only, or acoustic noise.

Main Results:

  • Behavioral interference, specifically increased reaction times, was observed when flanking speakers produced audiovisual speech.
  • Enhanced 19 Hz SSVEP indicated a stimulus-driven capture of attention towards distracting speakers.
  • Audiovisual speech from irrelevant sources acted as potent distractors, capturing attention involuntarily.

Conclusions:

  • Non-relevant audiovisual speech signals are highly salient and can capture attention in a stimulus-driven manner.
  • These findings elucidate the neural processes involved in selective attention within complex auditory scenes.
  • The study underscores the significant impact of distracting audiovisual speech on cognitive processing.