Related Experiment Video
Updated: Feb 11, 2026
12:03
A Method for Tracking the Time Evolution of Steady-State Evoked Potentials
Published on: May 25, 2019
8.9K
Enhanced perceptual processing of self-generated motion: Evidence from steady-state visual evoked potentials
Wen Wen1, Elisa Brann2, Steven Di Costa2
1Institute of Cognitive Neuroscience, University College London, Alexandra House, 17 Queen Square, London, WC1N 3AR, UK; Department of Precision Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan; Japan Society for the Promotion of Science, 5-3-1 Kojimachi, Chiyoda-ku, Tokyo, 102-0083, Japan.
Neuroimage
|April 15, 2018
Summary
Our sense of control enhances perception. We found that higher self-generated control over visual stimuli boosted neural responses, suggesting perception is enhanced, not reduced, by our actions.
Area of Science:
- Cognitive Neuroscience
- Perception Psychology
Background:
- Sense of agency links actions to outcomes.
- Influence of control on perception remains unclear.
Purpose of the Study:
- Examine how sense of control affects visual perception.
- Investigate neural processing of self-generated vs. non-self-generated motion.
Main Methods:
- Used steady-state visual evoked potentials (SSVEPs) to measure perceptual processing.
- Manipulated degree of spatial control over visual stimuli (shapes/dots).
- Participants detected visual changes while controlling stimulus motion.
Main Results:
- Stronger SSVEPs observed for stimuli under high control compared to low control.
- Neural responses underlying perception were boosted by spatial regularity.
- Perceptual processing of self-generated events is enhanced.
Conclusions:
- Spatial regularity between movement and visual input enhances neural responses.
- Findings support the preactivation account of sensory attenuation.
- Perception of self-generated events is enhanced, not inhibited.
Related Concept Videos
02:55The Evidence for Evolution
48.4K
Genetic variations accumulating within populations over generations give rise to biological evolution. Evolutionary changes can result in the formation of novel varieties and entire new species. These changes are responsible for the diverse forms of life inhabiting the planet. The evidence for evolution suggests that all living organisms descended from common ancestors.
48.4K
01:12Perceptual Constancy
1.5K
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...
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...
1.5K
01:05Steady State Concentration
6.1K
A steady state refers to the level of a drug in the body once it has reached an equilibrium between administration and elimination. It represents the point at which the drug administration rate equals the drug elimination rate, resulting in a relatively constant concentration in the body over time. The dynamic equilibrium is crucial to ensure the drug's effectiveness with minimal risk of toxicity.
Most drugs are administered in repeated doses at fixed intervals or through continuous...
Most drugs are administered in repeated doses at fixed intervals or through continuous...
6.1K
01:27Steady Flow of a Fluid Stream
773
Consider a control volume, such as a pipe with solid boundaries, through which fluid flows and changes direction due to the impulse exerted by the resulting force from the pipe walls. In steady flow, the mass of fluid entering the control volume at a given time, t, with velocity v1, is equal to the mass leaving after infinitesimal time dt, with velocity v2.
During this process, the momentum of the fluid within the control volume remains constant over the time interval dt. By applying the...
During this process, the momentum of the fluid within the control volume remains constant over the time interval dt. By applying the...
773
01:24Generation of Action Potential in Skeletal Muscles
9.0K
Every cell in the body maintains a membrane potential due to an uneven distribution of positive and negative charges across its plasma membrane. The membrane potential is measured in millivolts and quantifies the difference in charge across the membrane.
Like neurons, muscle cells are also regarded as excitable due to their capacity to change in response to stimuli, primarily due to voltage-gated ion channels embedded in their plasma membranes, which get activated by alterations in the...
Like neurons, muscle cells are also regarded as excitable due to their capacity to change in response to stimuli, primarily due to voltage-gated ion channels embedded in their plasma membranes, which get activated by alterations in the...
9.0K
01:24Transient and Steady-state Response
589
In control systems, test signals are essential for evaluating performance under various conditions. The ramp function is effective for systems undergoing gradual changes, while the step function is suitable for assessing systems facing sudden disturbances. For systems subjected to shock inputs, the impulse function is the most appropriate test signal.
These test signals are integral in designing control systems to exhibit two key performance aspects: transient response and steady-state...
These test signals are integral in designing control systems to exhibit two key performance aspects: transient response and steady-state...
589