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

ATP Driven Pumps I: An Overview01:27

ATP Driven Pumps I: An Overview

9.8K
ATP-driven pumps, also known as transport ATPases, are integral membrane proteins. They have binding sites for ATP located on the membrane's cytosolic side and the ion-conducting domain in the transmembrane region. These pumps use the free energy released from ATP hydrolysis to move the solutes across cell membranes against an electrochemical gradient.
There are four main types of ATP-driven pumps - P-type, V-type, F-type, and ABC transporter. All these pumps are of varying complexities and...
9.8K
ATP Driven Pumps II: P-type Pumps01:34

ATP Driven Pumps II: P-type Pumps

6.3K
The P-type pumps are a large family of integral membrane transporter ATPases. They are divided into five major types based on substrate specificity, from I to V.
A typical P-type pump has three cytosolic domains: nucleotide-binding (N), phosphorylation (P), and activator (A) domains. These domains are connected to the membrane-spanning helices by short amino acid segments. ATP hydrolysis and covalent phosphoenzyme intermediate formation are crucial parts of the catalytic cycle. At the highly...
6.3K
Xylem and Transpiration-driven Transport of Resources02:03

Xylem and Transpiration-driven Transport of Resources

26.6K
The xylem of vascular plants distributes water and dissolved minerals that are taken up by the roots to the rest of the plant. The cells that transport xylem sap are dead upon maturity, and the movement of xylem sap is a passive process.
26.6K
ATP Driven Pumps III: V-type Pumps01:30

ATP Driven Pumps III: V-type Pumps

4.8K
V-type pumps are ATP-driven pumps found in the vacuolar membranes of plants, yeast, endosomal and lysosomal membranes of animal cells, plasma membranes of a few specialized eukaryotic cells, and some prokaryotes. They are also known as the V1Vo-ATPase, that couple ATP hydrolysis to transport protons against a concentration gradient.
The peripheral or cytosolic V1 domain with eight subunits is involved in ATP hydrolysis. The integral or transmembrane V0 domain containing at least five subunits...
4.8K
Stereotype Threat and Self-fulfilling Prophecies02:09

Stereotype Threat and Self-fulfilling Prophecies

42.4K
When we hold a stereotype about a person, we have expectations that he or she will fulfill that stereotype. A self-fulfilling prophecy is an expectation held by a person that alters his or her behavior in a way that tends to make it true. When we hold stereotypes about a person, we tend to treat the person according to our expectations. This treatment can influence the person to act according to our stereotypic expectations, thus confirming our stereotypic beliefs. Research by Rosenthal and...
42.4K
Threats to Biodiversity01:50

Threats to Biodiversity

27.0K
There have been five major extinction events throughout geological history, resulting in the elimination of biodiversity, followed by a rebound of species that adapted to the new conditions. In the current geological epoch, the Holocene, there is a sixth extinction event in progress. This mass extinction has been attributed to human activities and is thus provisionally called the Anthropocene. In 2019 the human population reached 7.7 billion people and is projected to comprise 10 billion by...
27.0K

You might also read

Related Articles

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

Sort by
Same author

The role of statistical learning in attentional guidance during search through naturalistic scenes.

Journal of experimental psychology. Learning, memory, and cognition·2026
Same author

Daily Paced Breathing Sessions Induce Left Orbitofrontal Volume Changes Linked to Cognitive Outcomes.

medRxiv : the preprint server for health sciences·2026
Same author

Conditioned features are selectively encoded into working memory.

Journal of experimental psychology. Learning, memory, and cognition·2026
Same author

Statistical learning and the efficiency of visual search.

Attention, perception & psychophysics·2026
Same author

Orienting bias towards electronic nicotine delivery system (ENDS) cues.

Addictive behaviors reports·2026
Same author

The Attention Habit II: How selection history shapes the strategic control of attention.

Psychonomic bulletin & review·2025

Related Experiment Video

Updated: Jan 27, 2026

Measuring Attentional Biases for Threat in Children and Adults
08:25

Measuring Attentional Biases for Threat in Children and Adults

Published on: October 19, 2014

15.8K

Threat reduces value-driven but not salience-driven attentional capture.

Andy Jeesu Kim1, Brian A Anderson1

  • 1Texas A&M Institute for Neuroscience and Department of Psychological and Brain Sciences, Texas A&M University.

Emotion (Washington, D.C.)
|March 15, 2019
PubMed
Summary

Threat experience can blunt attention to reward-associated stimuli, showing value-based and threat-based processing compete. This contrasts with threat enhancing attention to physically salient stimuli.

More Related Videos

Light-driven Enzymatic Decarboxylation
09:58

Light-driven Enzymatic Decarboxylation

Published on: May 22, 2016

12.2K
Hepatocyte-specific Ablation in Zebrafish to Study Biliary-driven Liver Regeneration
08:14

Hepatocyte-specific Ablation in Zebrafish to Study Biliary-driven Liver Regeneration

Published on: May 20, 2015

9.1K

Related Experiment Videos

Last Updated: Jan 27, 2026

Measuring Attentional Biases for Threat in Children and Adults
08:25

Measuring Attentional Biases for Threat in Children and Adults

Published on: October 19, 2014

15.8K
Light-driven Enzymatic Decarboxylation
09:58

Light-driven Enzymatic Decarboxylation

Published on: May 22, 2016

12.2K
Hepatocyte-specific Ablation in Zebrafish to Study Biliary-driven Liver Regeneration
08:14

Hepatocyte-specific Ablation in Zebrafish to Study Biliary-driven Liver Regeneration

Published on: May 20, 2015

9.1K

Area of Science:

  • Cognitive Neuroscience
  • Psychology

Background:

  • Attention control involves both bottom-up and top-down processes.
  • Prior learning biases attention, capturing it with stimuli linked to reward or threat.
  • The interaction between value-based and threat-based selective processing remains unclear.

Purpose of the Study:

  • To investigate if threat experience modulates the attentional capture of previously reward-associated stimuli.
  • To determine if value-oriented and threat-oriented attention mechanisms interact.

Main Methods:

  • Utilized the value-driven attentional capture paradigm.
  • Introduced the threat of electric shock.
  • Examined attentional capture by reward-associated stimuli under threat conditions.

Main Results:

  • Value-driven attentional capture was diminished by the experience of threat.
  • Threat did not potentiate attentional capture by physically salient stimuli, replicating prior findings.
  • Threat selectively interfered with value-based attentional priority, not salience-based priority.

Conclusions:

  • Value-based and threat-based attentional processing appear to have a competitive relationship.
  • Threat selectively interferes with value-based attentional priority.
  • Findings suggest distinct processing pathways for value and salience in attention selection.