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

Association Areas of the Cortex01:21

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,...
Vision01:24

Vision

Vision is the result of light being detected and transduced into neural signals by the retina of the eye. This information is then further analyzed and interpreted by the brain. First, light enters the front of the eye and is focused by the cornea and lens onto the retina—a thin sheet of neural tissue lining the back of the eye. Because of refraction through the convex lens of the eye, images are projected onto the retina upside-down and reversed.
Depth Perception and Spatial Vision01:15

Depth Perception and Spatial Vision

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.

You might also read

Related Articles

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

Sort by
Same author

A wireless subdural-contained brain-computer interface with 65,536 electrodes and 1,024 channels.

Nature electronics·2026
Same author

Microscale organization and separability of upper extremity representations in the human motor homunculus.

Research square·2026
Same author

Pituitary Apoplexy Precipitated by Non-Cranial Surgeries: An Institutional Experience.

Journal of neurological surgery. Part B, Skull base·2026
Same author

Dissociating stimulus encoding and task demands in ECoG responses from human visual cortex.

bioRxiv : the preprint server for biology·2026
Same author

Thalamus: a real-time system for synchronized, closed-loop multimodal behavioral and electrophysiological data capture.

Communications engineering·2026
Same author

Attention-related modulation in the superior colliculus encodes perceptual sensitivity, but not perceptual choice.

Nature communications·2026

Related Experiment Video

Updated: Jul 9, 2026

Measuring Attention and Visual Processing Speed by Model-based Analysis of Temporal-order Judgments
13:00

Measuring Attention and Visual Processing Speed by Model-based Analysis of Temporal-order Judgments

Published on: January 23, 2017

Spatial attention does not strongly modulate neuronal responses in early human visual cortex.

Daniel Yoshor1, Geoffrey M Ghose, William H Bosking

  • 1Department of Neurosurgery, Baylor College of Medicine, Houston, Texas 77030, USA. dyoshor@bcm.edu

The Journal of Neuroscience : the Official Journal of the Society for Neuroscience
|November 30, 2007
PubMed
Summary
This summary is machine-generated.

Spatial attention in humans shows modest neural modulation in early visual cortex, aligning with primate studies. This suggests behavioral state may affect the relationship between neural activity and the blood oxygen level-dependent (BOLD) signal.

More Related Videos

Investigating the Deployment of Visual Attention Before Accurate and Averaging Saccades via Eye Tracking and Assessment of Visual Sensitivity
06:46

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

Published on: March 18, 2019

Simultaneous Eye Tracking and Single-Neuron Recordings in Human Epilepsy Patients
07:43

Simultaneous Eye Tracking and Single-Neuron Recordings in Human Epilepsy Patients

Published on: June 17, 2019

Related Experiment Videos

Last Updated: Jul 9, 2026

Measuring Attention and Visual Processing Speed by Model-based Analysis of Temporal-order Judgments
13:00

Measuring Attention and Visual Processing Speed by Model-based Analysis of Temporal-order Judgments

Published on: January 23, 2017

Investigating the Deployment of Visual Attention Before Accurate and Averaging Saccades via Eye Tracking and Assessment of Visual Sensitivity
06:46

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

Published on: March 18, 2019

Simultaneous Eye Tracking and Single-Neuron Recordings in Human Epilepsy Patients
07:43

Simultaneous Eye Tracking and Single-Neuron Recordings in Human Epilepsy Patients

Published on: June 17, 2019

Area of Science:

  • Neuroscience
  • Cognitive Neuroscience
  • Visual Perception

Background:

  • Attention significantly enhances visual performance.
  • Discrepancy exists between monkey neurophysiology (modest V1 modulation) and human fMRI (large V1 BOLD signal enhancement) regarding spatial attention's effect on early visual cortex.
  • The precise neural mechanisms of attentional modulation in early human visual cortex remain unclear.

Purpose of the Study:

  • To directly measure the impact of spatial attention on neuronal activity in early human visual cortex.
  • To resolve the discrepancy between monkey and human studies on attentional modulation.
  • To investigate the relationship between neuronal activity and the BOLD signal under attention.

Main Methods:

  • Utilized intracranial electrodes to record neuronal activity near the human occipital pole.
  • Measured local field potentials (LFPs) in response to visual stimuli.
  • Compared neuronal responses with and without spatial attention.

Main Results:

  • Spatial attention did not robustly modulate stimulus-driven local field potentials in early human visual cortex.
  • Observed modest attentional modulations consistent with findings from monkey neurophysiology experiments.
  • Indicates potential non-linearities between neuronal activity and the BOLD signal.

Conclusions:

  • Neuronal activity underlying visual attention in humans is comparable to that in other primates.
  • The large BOLD signal enhancement observed in human fMRI studies may not solely reflect direct neuronal modulation.
  • Behavioral state might influence the linear relationship between neuronal activity and the BOLD signal, explaining the observed discrepancy.