Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Interference and Diffraction02:18

Interference and Diffraction

28.7K
Interference is a characteristic phenomenon exhibited by waves. When two electromagnetic waves interact with their peaks and troughs coinciding, a resulting wave with enhanced amplitude is produced. This is known as constructive interference. In this case, the two waves interacting are in phase with each other.
28.7K
Variables Affecting Phosphorescence and Fluorescence01:26

Variables Affecting Phosphorescence and Fluorescence

3.9K
Fluorescence and phosphorescence are essential phenomena in fields like analytical chemistry, biological imaging, and materials science, where they detect molecular properties and visualize cellular structures. Understanding the variables that influence these luminescent behaviors is crucial for maximizing accuracy and efficiency in their applications. These variables can broadly be grouped into chemical structure, solvent properties, and external conditions, each playing a distinct role in...
3.9K
Photoluminescence: Applications01:14

Photoluminescence: Applications

1.3K
Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...
1.3K
Atomic Absorption Spectroscopy: Interference01:25

Atomic Absorption Spectroscopy: Interference

2.3K
Interference leads to systematic error in atomic absorption (AA) measurements by enhancing or diminishing the analytical signal or the background. These interferences can be grouped into three main categories: spectral interference, chemical interference, and physical interference.
Spectral interference occurs when signals from other elements or molecules overlap with the analyte signal, falsely elevating or masking the analyte's absorbance. This interference can be corrected using Zeeman,...
2.3K
Atomic Emission Spectroscopy: Interference01:30

Atomic Emission Spectroscopy: Interference

785
In atomic emission spectroscopy (AES), high-temperature atomizers excite a broad range of elements and molecules that generate complex emissions from sources such as oxides, hydroxides, and flame combustion products in the flame or plasma. Several strategies can be employed to minimize spectral interferences caused by overlapping emission lines or bands. These include increasing instrument resolution, choosing alternative emission lines, optimally placing the detector in low-background regions,...
785
Biasing of P-N Junction01:16

Biasing of P-N Junction

2.7K
The operation of a p-n junction diode involves various biasing conditions, including forward bias, reverse bias, and equilibrium.
In equilibrium, no external voltage is applied across the p-n junction. The depletion region is formed at the junction interface due to the diffusion of carriers, which leaves behind charged dopants, acceptors on the p-side, and donors on the n-side. These immobile charges create an electric field that prevents further diffusion of carriers. The related energy band...
2.7K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Learned statistical regularity modulates anticipatory micro-saccades toward suppressed distractor locations.

Nature communications·2026
Same author

Visual Selection Is Spatially Constrained During Working Memory Consolidation.

Quarterly journal of experimental psychology (2006)·2026
Same author

35+ years of the additional singleton task: Design features and guidelines.

Attention, perception & psychophysics·2026
Same author

Dynamic competition between bottom-up saliency and top-down goals in early visual cortex.

Communications biology·2026
Same author

Incidental learning of time-event relationships across processing stages.

Journal of experimental psychology. Human perception and performance·2026
Same author

Learning alters salience and proactive attentional priority.

Communications psychology·2026
Same journal

Sensorimotor Adaptation of Vocal Pitch Is Impaired in Cerebellar Ataxia.

Journal of cognitive neuroscience·2026
Same journal

Memory in the Palm of Your Hand: Smartphone-based Methods for Measuring Memory in the Wild.

Journal of cognitive neuroscience·2026
Same journal

Processing Asymmetry in Object-modifying Relative Clauses: Evidence from Functional Connectivity.

Journal of cognitive neuroscience·2026
Same journal

Extensive Experience Remodels Neural Task Circuitry to Escape the Frontal Bottleneck and Increase Automaticity of Categorization.

Journal of cognitive neuroscience·2026
Same journal

Investigating the Effects of Acute Stress on Neural Mechanisms of Self-controlled Decision-making.

Journal of cognitive neuroscience·2026
Same journal

Distilling the Neurophenomenological Signatures of Pure Awareness during Transcendental Meditation.

Journal of cognitive neuroscience·2026
See all related articles

Related Experiment Video

Updated: May 1, 2026

Brain Imaging Investigation of the Impairing Effect of Emotion on Cognition
16:08

Brain Imaging Investigation of the Impairing Effect of Emotion on Cognition

Published on: February 1, 2012

16.8K

A Flash in the Pan? Distractor Suppression Cannot Be Inferred from the Early Lateralized Positivity.

Matt Oxner1, Dirk van Moorselaar2,3, Matthias M Müller1

  • 1Wilhelm-Wundt-Institut für Psychologie, Universität Leipzig, Leipzig, Germany.

Journal of Cognitive Neuroscience
|May 22, 2025
PubMed
Summary
This summary is machine-generated.

Humans can avoid visual distractions, but the neural marker for proactive distractor suppression, the early distractor positivity (PD), may not be specific. This early PD likely reflects general salience processing rather than active suppression.

More Related Videos

A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions
10:38

A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions

Published on: July 16, 2015

14.1K
Online Repetitive Transcranial Magnetic Stimulation of Dorsomedial and Dorsolateral Prefrontal Cortex in Cognition Decision Making, and Cognitive Dissonance
13:20

Online Repetitive Transcranial Magnetic Stimulation of Dorsomedial and Dorsolateral Prefrontal Cortex in Cognition Decision Making, and Cognitive Dissonance

Published on: December 5, 2025

679

Related Experiment Videos

Last Updated: May 1, 2026

Brain Imaging Investigation of the Impairing Effect of Emotion on Cognition
16:08

Brain Imaging Investigation of the Impairing Effect of Emotion on Cognition

Published on: February 1, 2012

16.8K
A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions
10:38

A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions

Published on: July 16, 2015

14.1K
Online Repetitive Transcranial Magnetic Stimulation of Dorsomedial and Dorsolateral Prefrontal Cortex in Cognition Decision Making, and Cognitive Dissonance
13:20

Online Repetitive Transcranial Magnetic Stimulation of Dorsomedial and Dorsolateral Prefrontal Cortex in Cognition Decision Making, and Cognitive Dissonance

Published on: December 5, 2025

679

Area of Science:

  • Cognitive Neuroscience
  • Visual Attention Research

Background:

  • Humans effectively filter salient distractors in visual environments.
  • Proactive distractor suppression is a proposed mechanism for attentional control.
  • The early distractor positivity (PD) (<200ms) has been linked to this suppression.

Purpose of the Study:

  • To test the specificity of the early PD to proactive distractor suppression.
  • To investigate whether the early PD is exclusively driven by suppression or other factors like salience.

Main Methods:

  • Three visual search experiments were conducted.
  • Participants performed tasks with distractors, targets, and task-irrelevant salient items.
  • Electrophysiological recordings measured the early lateralized positivity.

Main Results:

  • The early positivity was elicited by salient distractors.
  • It was also observed in response to other salient singletons, not just suppressible distractors.
  • The neural marker appeared even for stimuli that could not be proactively suppressed.

Conclusions:

  • The early PD is not a specific marker for proactive distractor suppression.
  • This neural component likely reflects sensory imbalance or salience processing of lateralized stimuli.
  • The association of early PD with distractor presence appears incidental, not causal.