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

Factors Affecting Perception01:25

Factors Affecting Perception

Perception is influenced by perceptual set, context, motivation, and emotion. Perceptual set, or perceptual expectancy, refers to the tendency to perceive things in a particular way, influenced by previous experiences and expectations. This phenomenon affects the interpretation of stimuli, creating a set of mental tendencies and assumptions that impact sensory perceptions of sound, taste, touch, and sight.
An illustrative example of a perceptual set is the scenario where an airline pilot told...
Auditory Perception01:17

Auditory Perception

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 cochlea, a...
Focusing of Light in the Eye01:16

Focusing of Light in the Eye

Light rays enter the eye through the cornea, a transparent dome-shaped tissue that is the eye's outermost layer. The cornea bends or refracts, light rays traveling to the pupil. The shape of the cornea determines how much of the light is bent and whether the image will be focused correctly on the retina at the back of the eye. Once the light has passed through both refraction layers, it converges into a single focal point onto a small area. This is where photoreceptors start transforming...
Perception of Sound Waves01:01

Perception of Sound Waves

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 frequency...
Perceiving Loudness, Pitch, and Location01:21

Perceiving Loudness, Pitch, and Location

The human brain perceives pitch through two primary mechanisms reflected in place theory and frequency theory. Each mechanism describes how sound waves are interpreted as specific pitches by the brain, offering insights into the intricate processes of auditory perception.
Place theory, or place coding, suggests that different pitches are heard because various sound waves activate specific locations along the cochlea's basilar membrane. The brain determines the pitch of a sound by identifying...
Non-Verbal Cues01:29

Non-Verbal Cues

Non-verbal communication extends beyond gestures and facial expressions to include vocal elements known as paralanguage. Paralanguage consists of non-verbal vocal cues such as pitch, loudness, speech rate, pauses, and non-verbal vocalizations like laughter, sighs, and moans. These elements not only accompany speech but also provide critical emotional and contextual information.The Role of Paralanguage in CommunicationParalanguage adds depth to spoken language by conveying emotions and...

You might also read

Related Articles

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

Sort by
Same author

A Japanese LDA model for automatic clustering analysis of semantic verbal fluency tests.

Behavior research methods·2025
Same author

Facial mimicry depends on the emotion we recognize in others' faces.

Cognition & emotion·2025
Same author

Impact of partial occlusion of the face on multisensory emotion perception: Comparison of pre- and post-COVID-19 pandemic.

PloS one·2025
Same author

Touch and voice have different advantages in perceiving positive and negative emotions.

i-Perception·2023
Same author

Orthographic properties of distractors do influence phonological Stroop effects: Evidence from Japanese Romaji distractors.

Memory & cognition·2020
Same author

Audiovisual emotion perception develops differently from audiovisual phoneme perception during childhood.

PloS one·2020

Related Experiment Video

Updated: Jul 8, 2026

Eye Tracking During Visually Situated Language Comprehension: Flexibility and Limitations in Uncovering Visual Context Effects
07:36

Eye Tracking During Visually Situated Language Comprehension: Flexibility and Limitations in Uncovering Visual Context Effects

Published on: November 30, 2018

How does optical blur affect audiovisual speech perception and emotion perception?

Masahiro Yoshihara1, Hisako W Yamamoto2,3, Misako Kawahara3

  • 1Graduate School of International Cultural Studies, Tohoku University, 41 Kawauchi, Aoba-ku, Sendai, Japan.

Attention, Perception & Psychophysics
|July 6, 2026
PubMed
Summary

Optical blur impacts audiovisual perception differently for speech and emotion. Speech perception is more robust to blur, showing persistent visual influence even under severe degradation, unlike emotion perception.

Keywords:
Emotion perceptionMultisensory perceptionOptical blurSpatial frequencySpeech perception

More Related Videos

Eye Movements in Visual Duration Perception: Disentangling Stimulus from Time in Predecisional Processes
09:27

Eye Movements in Visual Duration Perception: Disentangling Stimulus from Time in Predecisional Processes

Published on: January 19, 2024

Using Eye Movements Recorded in the Visual World Paradigm to Explore the Online Processing of Spoken Language
09:27

Using Eye Movements Recorded in the Visual World Paradigm to Explore the Online Processing of Spoken Language

Published on: October 13, 2018

Related Experiment Videos

Last Updated: Jul 8, 2026

Eye Tracking During Visually Situated Language Comprehension: Flexibility and Limitations in Uncovering Visual Context Effects
07:36

Eye Tracking During Visually Situated Language Comprehension: Flexibility and Limitations in Uncovering Visual Context Effects

Published on: November 30, 2018

Eye Movements in Visual Duration Perception: Disentangling Stimulus from Time in Predecisional Processes
09:27

Eye Movements in Visual Duration Perception: Disentangling Stimulus from Time in Predecisional Processes

Published on: January 19, 2024

Using Eye Movements Recorded in the Visual World Paradigm to Explore the Online Processing of Spoken Language
09:27

Using Eye Movements Recorded in the Visual World Paradigm to Explore the Online Processing of Spoken Language

Published on: October 13, 2018

Area of Science:

  • Multisensory perception
  • Auditory perception
  • Visual perception

Background:

  • Auditory judgments of speech and emotion are heavily influenced by visual cues like lip movements.
  • The extent to which visual influence is similarly affected by visual degradation across speech and emotion perception is not well understood.

Purpose of the Study:

  • To investigate how optical blur affects auditory-based speech and emotion perception.
  • To determine if visual influence is modulated similarly across speech and emotion perception under visual degradation.

Main Methods:

  • Audiovisual stimuli were degraded using optical blur.
  • Participants judged speech and emotion based solely on auditory information.
  • The study analyzed the persistence and modulation of visual influence under varying levels of blur.

Main Results:

  • Visual influence on both speech and emotion perception persisted even with blurred stimuli.
  • Speech perception showed higher sensitivity to optical blur, with visual influence decreasing at a higher spatial frequency cutoff (6.7 cpf) compared to emotion perception (5 cpf).
  • Visual influence remained significant in speech perception under severe blur (3.3 cpf), but not in emotion perception.

Conclusions:

  • Optical blur differentially modulates visual influence in speech versus emotion perception.
  • The multisensory perceptual system dynamically calibrates sensory weights based on visual reliability in a task-dependent manner.
  • Speech perception demonstrates a relatively higher persistence of visual influence compared to emotion perception under visual degradation.