Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Region of Convergence

Region of Convergence

The z-transform is a powerful mathematical tool used in the analysis of discrete-time signals and systems. It is a crucial tool in the analysis of discrete-time systems, but its convergence is limited to specific values of the complex variable z. This range of values, known as the Region of Convergence (ROC), is fundamental in determining the behavior and stability of a system or signal. The ROC defines the region in the complex plane where the z-transform converges, which can take various...

Association Areas of the Cortex

Association Areas of the Cortex

Association areas are regions of the cerebral cortex that do not have a specific sensory or motor function. Instead, they integrate and interpret information from various sources to enable higher cognitive processes such as memory, learning, and decision-making. Some key association areas include the following:
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...

Regioselectivity and Stereochemistry of Hydroboration

Regioselectivity and Stereochemistry of Hydroboration

A significant aspect of hydroboration–oxidation is the regio- and stereochemical outcome of the reaction.
Hydroboration proceeds in a concerted fashion with the attack of borane on the π bond, giving a cyclic four-centered transition state. The –BH2 group is bonded to the less substituted carbon and –H to the more substituted carbon. The concerted nature requires the simultaneous addition of –H and –BH2 across the same face of the alkene giving syn stereochemistry.

You might also read

Related Articles

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

Sort by

Same author

Does hand position affect orienting when no action is required? An electrophysiological study.

Frontiers in neuroscience·2023

Same author

Learned distractor rejection persists across target search in a different dimension.

Attention, perception & psychophysics·2022

Same author

Testing the underlying processes leading to learned distractor rejection: Learned oculomotor avoidance.

Attention, perception & psychophysics·2022

Same author

Learned distractor rejection in the face of strong target guidance.

Journal of experimental psychology. Human perception and performance·2020

Same author

Feature-based guidance of attention during post-saccadic selection.

Attention, perception & psychophysics·2019

Same author

Feature-based statistical regularities of distractors modulate attentional capture.

Journal of experimental psychology. Human perception and performance·2019

Search research articles

Related Experiment Video

Updated: Jul 16, 2026

Investigating Object Representations in the Macaque Dorsal Visual Stream Using Single-unit Recordings

Investigating Object Representations in the Macaque Dorsal Visual Stream Using Single-unit Recordings

Published on: August 1, 2018

The return of object-based attention: selection of multiple-region objects.

Michi Matsukura¹, Shaun P Vecera

¹Department of Psychology, University of Iowa, E11 Seashore Hall, Iowa City, IA 52242-1407, USA. michi-matsukura@uiowa.edu

Perception & Psychophysics

|March 16, 2007

Summary

Object-based attention selects features on the same object more easily. This study shows that attention can select multi-region objects if their parts perceptually group together using cues like edge continuation.

More Related Videos

End-To-End Deep Neural Network for Salient Object Detection in Complex Environments

End-To-End Deep Neural Network for Salient Object Detection in Complex Environments

Published on: December 15, 2023

Methods to Test Visual Attention Online

Methods to Test Visual Attention Online

Published on: February 19, 2015

Related Experiment Videos

Last Updated: Jul 16, 2026

Investigating Object Representations in the Macaque Dorsal Visual Stream Using Single-unit Recordings

Investigating Object Representations in the Macaque Dorsal Visual Stream Using Single-unit Recordings

Published on: August 1, 2018

End-To-End Deep Neural Network for Salient Object Detection in Complex Environments

End-To-End Deep Neural Network for Salient Object Detection in Complex Environments

Published on: December 15, 2023

Methods to Test Visual Attention Online

Methods to Test Visual Attention Online

Published on: February 19, 2015

Area of Science:

Cognitive Psychology
Visual Perception

Background:

Object-based attention enhances processing of features within a single object.
Previous studies showed object-based effects mainly for single-region objects, limiting applicability to complex natural scenes.

Purpose of the Study:

Investigate perceptual grouping's role in object-based attention for multi-region objects.
Determine if object-based attentional effects extend to objects composed of multiple, perceptually grouped regions.

Main Methods:

Manipulated perceptual grouping of multiple regions within single objects.
Utilized edge continuation and part/occlusion cues to influence grouping.
Measured object-based attentional effects via feature selection efficiency.

Main Results:

Object-based attentional effects were reduced when object regions did not perceptually group.
Strong object-based effects emerged when regions grouped via edge continuation.
Part and occlusion cues also supported grouping and object-based attention.

Conclusions:

Object-based attention is robust and can encompass multi-region objects.
Perceptual grouping is crucial for extending object-based attention to complex objects.
Visual system uses grouping cues to define object boundaries for attentional selection.