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

Visual Agnosia01:12

Visual Agnosia

1.7K
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...
1.7K
Survival Tree01:19

Survival Tree

469
Survival trees are a non-parametric method used in survival analysis to model the relationship between a set of covariates and the time until an event of interest occurs, often referred to as the "time-to-event" or "survival time." This method is particularly useful when dealing with censored data, where the event has not occurred for some individuals by the end of the study period, or when the exact time of the event is unknown.
 Building a Survival Tree
Constructing a...
469
Depth Perception and Spatial Vision01:15

Depth Perception and Spatial Vision

2.6K
Depth perception is the ability to perceive objects three-dimensionally. It relies on two types of cues: binocular and monocular. Binocular cues depend on the combination of images from both eyes and how the eyes work together. Since the eyes are in slightly different positions, each eye captures a slightly different image. This disparity between images, known as binocular disparity, helps the brain interpret depth. When the brain compares these images, it determines the distance to an object.
2.6K
Perceptual Constancy01:12

Perceptual Constancy

1.8K
Perceptual constancy is the ability to recognize that objects remain consistent and unchanged even when their appearance varies due to changes in sensory input. There are four main types of perceptual constancy: size constancy, shape constancy, color constancy, and brightness constancy.
Size constancy is the recognition that an object remains the same size, even when its image on the retina changes. For instance, a bus is perceived to be large enough to carry people, even if it looks tiny from...
1.8K
Adjusting a Traverse01:12

Adjusting a Traverse

433
In the site survey of a four-sided traverse, internal angles are essential to ensure geometric accuracy. The survey revealed that the sum of the measured internal angles was 359 degrees and 48 minutes, which is 12 minutes less than the expected 360 degrees. This discrepancy signals an error likely arising from measurement inaccuracies during the fieldwork.To rectify this error, the adjustment process involved distributing the 12-minute shortfall equally across the four internal angles. By...
433
Reducing Line Loss01:18

Reducing Line Loss

444
In a three-phase circuit, line loss is an indicator of energy dissipated as heat due to the resistance of transmission lines. To address this, incorporating transformers into the system—a step-up transformer at the source and a step-down transformer at the load—is a strategic solution. Two three-phase transformers are introduced to improve this.
With a step-up transformer at the source, the voltage is increased, thereby reducing the current in the transmission lines since power loss in...
444

You might also read

Related Articles

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

Sort by
Same author

Simon says "stay in touch": Reachability moderates the effect of irrelevant spatial congruence.

Psychonomic bulletin & review·2026
Same author

Saccades to spatially extended objects: The roles of observer goals and part-structure cues in determining within-object landing position.

Journal of vision·2026
Same author

Perceptual organization is limited in peripheral vision: Evidence from configural superiority.

Journal of vision·2025
Same author

Spatial selectivity in visual detection suffers when attention is divided.

Attention, perception & psychophysics·2025
Same author

Saccades to partially occluded objects: Perceptual completion mediates oculomotor control.

Journal of vision·2024
Same author

The human subthalamic nucleus transiently inhibits active attentional processes.

Brain : a journal of neurology·2024

Related Experiment Video

Updated: Mar 28, 2026

Integrating Visual Psychophysical Assays within a Y-Maze to Isolate the Role that Visual Features Play in Navigational Decisions
07:09

Integrating Visual Psychophysical Assays within a Y-Maze to Isolate the Role that Visual Features Play in Navigational Decisions

Published on: May 2, 2019

6.6K

Losing the trees for the forest in dynamic visual search.

Nicole L Jardine1, Cathleen M Moore1

  • 1Department of Psychological and Brain Sciences, University of Iowa.

Journal of Experimental Psychology. Human Perception and Performance
|December 23, 2015
PubMed
Summary

Updating object representations in dynamic visual search impairs performance. This representational updating leads to a loss of access to instantaneous visual state information, hindering target detection in changing scenes.

More Related Videos

Dynamic Visual Tests to Identify and Quantify Visual Damage and Repair Following Demyelination in Optic Neuritis Patients
12:23

Dynamic Visual Tests to Identify and Quantify Visual Damage and Repair Following Demyelination in Optic Neuritis Patients

Published on: April 14, 2014

14.7K
Collecting and Processing Drone-based Remotely Sensed Data for Use in Forest Recovery Monitoring
08:16

Collecting and Processing Drone-based Remotely Sensed Data for Use in Forest Recovery Monitoring

Published on: October 24, 2025

840

Related Experiment Videos

Last Updated: Mar 28, 2026

Integrating Visual Psychophysical Assays within a Y-Maze to Isolate the Role that Visual Features Play in Navigational Decisions
07:09

Integrating Visual Psychophysical Assays within a Y-Maze to Isolate the Role that Visual Features Play in Navigational Decisions

Published on: May 2, 2019

6.6K
Dynamic Visual Tests to Identify and Quantify Visual Damage and Repair Following Demyelination in Optic Neuritis Patients
12:23

Dynamic Visual Tests to Identify and Quantify Visual Damage and Repair Following Demyelination in Optic Neuritis Patients

Published on: April 14, 2014

14.7K
Collecting and Processing Drone-based Remotely Sensed Data for Use in Forest Recovery Monitoring
08:16

Collecting and Processing Drone-based Remotely Sensed Data for Use in Forest Recovery Monitoring

Published on: October 24, 2025

840

Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Visual Perception

Background:

  • Continuous object representation requires integrating new visual data with existing memory.
  • Dynamic visual search tasks involve identifying targets within changing visual scenes.
  • Understanding how the brain updates object representations is crucial for explaining visual search efficiency.

Purpose of the Study:

  • To investigate the impact of representational updating on dynamic visual search performance.
  • To determine the underlying mechanisms responsible for search deficits in changing visual environments.
  • To explore potential strategies for mitigating performance declines in dynamic visual search.

Main Methods:

  • Participants performed a visual search task involving rotating bars, identifying a target with a specific orientation.
  • Experiment 1: Compared search efficiency in static vs. dynamic (rotating) displays.
  • Experiments 2-5: Systematically ruled out masking, temporal markers, and assessed the effect of unique feature information on search performance.

Main Results:

  • Search performance significantly declined when the target display was part of a dynamic, changing scene compared to a static display.
  • The observed deficit was not due to masking or lack of temporal markers.
  • Partially mitigating the deficit was achieved by visually marking the target with unique features.

Conclusions:

  • Representational updating in dynamic visual search leads to a loss of access to instantaneous state information.
  • This phenomenon is analogous to spatial crowding, where individual details are lost within a complex visual field.
  • The findings suggest a trade-off between maintaining continuous object representations and accessing specific, instantaneous visual details during search.