Related Experiment Video
Updated: Aug 18, 2025
07:13
A Two-interval Forced-choice Task for Multisensory Comparisons
Published on: November 9, 2018
11.0K
A perceptual glitch in serial perception generates temporal distortions
Franklenin Sierra1, R Muralikrishnan2, David Poeppel3,4
1Department of Neuroscience, Max Planck Institute for Empirical Aesthetics, Frankfurt am Main, HE, Germany. franklenin.sierra@gmail.com.
Scientific Reports
|December 6, 2022
Summary
Temporal distortions occur when the first event is shorter than the second. A longer interval between stimuli counteracts this distortion only when the predictable event is first, revealing a duration-dependent encoding inefficiency.
Area of Science:
- Cognitive Psychology
- Neuroscience
- Human Perception
Background:
- Accurate time perception is crucial for survival.
- Sensory experiences often involve temporal distortions.
- Understanding these distortions is key to understanding perception.
Purpose of the Study:
- To investigate if event position, duration, and temporal distance cause temporal distortions.
- To identify the mechanisms behind serial temporal perception biases.
- To determine how event predictability influences time perception.
Main Methods:
- Behavioral experiments with standard (S) and comparison (C) events of varying durations.
- Analysis of temporal distortions based on event order and inter-stimulus interval (ISI).
- Bayesian modeling to simulate and validate behavioral findings.
Main Results:
- Temporal distortions arise when the first event is shorter than the second.
- A longer ISI mitigates distortions only when the constant event (S) is presented first.
- Participants disproportionately expand short, unpredictable events in the first position.
Conclusions:
- A duration-dependent encoding inefficiency exists in human serial temporal perception.
- This inefficiency acts like a strong prior, overridden by predictable events.
- Unpredictable events trigger biases, leading to significant time perception distortions.
Related Concept Videos
01:12Perceptual Constancy
489
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...
489
01:01Perception of Sound Waves
4.6K
The human ear is not equally sensitive to all frequencies in the audible range. It may perceive sound waves with the same pressure but different frequencies as having different loudness. Moreover, the perception of sound waves depends on the health of an individual's ears, which decays with age. The health of one's ears may also be affected by regular exposure to loud noises.
The pitch of a sound depends on the frequency and the pressure amplitude of the source. Two sounds of the same...
The pitch of a sound depends on the frequency and the pressure amplitude of the source. Two sounds of the same...
4.6K
01:28Perception
531
Perception is a fundamental psychological process that enables individuals to organize, interpret, and consciously experience sensory information. This process is crucial for understanding and interacting with the world around us. It includes both bottom-up and top-down processing, each playing a distinct role in how we perceive our environment.
Bottom-up processing begins at the sensory level, where receptors detect external environmental stimuli. These could include the tactile sensation of...
Bottom-up processing begins at the sensory level, where receptors detect external environmental stimuli. These could include the tactile sensation of...
531
01:18Aliasing
194
Accurate signal sampling and reconstruction are crucial in various signal-processing applications. A time-domain signal's spectrum can be revealed using its Fourier transform. When this signal is sampled at a specific frequency, it results in multiple scaled replicas of the original spectrum in the frequency domain. The spacing of these replicas is determined by the sampling frequency.
If the sampling frequency is below the Nyquist rate, these replicas overlap, preventing the original...
If the sampling frequency is below the Nyquist rate, these replicas overlap, preventing the original...
194
01:20Parallel Processing
203
The brain processes sensory information rapidly due to parallel processing, which involves sending data across multiple neural pathways at the same time. This method allows the brain to manage various sensory qualities, such as shapes, colors, movements, and locations, all concurrently. For instance, when observing a forest landscape, the brain simultaneously processes the movement of leaves, the shapes of trees, the depth between them, and the various shades of green. This enables a quick and...
203
01:17Auditory Perception
416
The auditory system is essential for sound perception, utilizing various critical structures. When sound waves enter the outer ear, they travel through the ear canal and cause the eardrum to vibrate. These vibrations are then transmitted to the middle ear, where three tiny bones – the malleus, incus, and stapes – amplify the sound. This amplification is crucial, as it ensures that the sound vibrations are strong enough to be conveyed to the inner ear. These vibrations then reach the...
416