vEAR: Hearing Silent Flashes When Viewing Animated Images

Author: City University London
Published: 2018/03/20 - Updated: 2025/05/23
Publication Details: Peer-Reviewed, Informative
Category Topic: The Human Brain - Academic Publications

Page Content: Synopsis - Introduction - Main - Insights, Updates

Synopsis: This peer-reviewed research details a large-scale study from City, University of London, revealing that around 21% of people experience a phenomenon known as visually-evoked auditory response (vEAR), where silent visual events - such as flashing lights, animated GIFs, or even a ballet dancer's pirouette - can trigger vivid auditory sensations. The study, published in Cortex, is authoritative due to its rigorous methodology, involving over 4,000 participants and exploring both meaningful and abstract visual stimuli, finding that even meaningless patterns can evoke sounds for some individuals. The research is particularly useful for understanding cross-sensory perception, which is more common than previously recognized forms of synesthesia, and may offer valuable insights for people with disabilities, seniors, or those experiencing conditions like tinnitus, as vEAR was found to be associated with both tinnitus and musical imagery. Examples cited include hearing sounds from car indicator lights, flashing neon shop signs, or people's movements - experiences that may help explain broader links between vision and hearing in everyday life and could inform future accessibility or sensory support strategies - Disabled World (DW).

Introduction

Up to one in five people may show signs of a synesthesia like phenomenon in which they 'hear' silent flashes or movement, according to a new study from City, University of London. While the effect is barely known to science, the researchers found that this 'visually-evoked auditory response' (vEAR) is far more common than other types of synesthesia - such when certain sounds elicit a specific color - with flashing lights and motion evoking vivid sounds.

Main Content

The survival of this association may also explain other links between sound and vision, such as why we like to listen to music synchronized with flashing lights or dance. The effect also provides a good way to learn about what's happening in the brain in people with synesthesia, with vEAR's high prevalence making it easier to investigate the mechanisms behind such cross-sensory perception. The study is published in the journal Cortex.

While other typical synesthesia's are estimated to have an overall prevalence of 4.4 percent, the vEAR effect has recently gained some prominence on social media following the rise of 'noisy GIFs', and in particular the 'thudding pylon' GIF which received thousands of retweets.

Its prevalence may be greater than other types because auditory and visual events are much more highly correlated in nature when compared to other types of synesthesia associated with color and visual forms.

To further investigate the prevalence of the phenomenon, the researchers carried out the first large-scale online study of this barely-known effect, and recruited 4,128 participants to answer a survey, with 1,058 of these also answering additional trait-related questions.

The survey included 24 silent video clips which depicted meaningful versus abstract subjects engagement in slow, fast, smooth or sudden movements. This included a ballet dancer performing a pirouette and a hammer hitting a nail. The survey also included additional multiple choice questions asking about demographics, experience of vEAR and other traits.

As well as noting the significantly higher prevalence of the vEAR, with 21% of the 4,128 completing respondents saying that they had previously experienced vEAR, the researchers also found that even meaningless abstract visual stimuli can evoke vivid sounds.

It was seen that correspondents who had answered 'yes' to experiencing vEAR were specifically sensitive to the pure motion energy present in videos such as swirling or patterns that were not predictive of sounds.

The researchers also saw that vEAR was associated with phenomena such as tinnitus and also musical imagery. This suggests that physiological factors such as raised cortical excitability in the brain might jointly explain these phenomena.

Speaking about the research, Dr Elliot Freeman, author of the study and a Senior Lecturer in Psychology at City, University of London, said:

"Some people hear what they see. Car indicator lights, flashing neon shop signs, and people's movements as they walk may all trigger an auditory sensation."

"Ours is the first large-scale survey of this ability. We found that as many as 21% of people may experience forms of this phenomenon, which makes it considerably more prevalent than other synesthesia's."

"We think that these sensations may sometimes reflect leakage of information from visual parts of the brain into areas that are more usually devoted to hearing. In extreme forms of this crosstalk, any abstract visual motion or flashing may be sufficient to trigger the sensation of hearing sounds."

Dr Christopher Fassnidge, who completed his PhD at City and is the first author on the paper, said:

"This is an exciting insight into the different ways some of us perceive the world around us. The high prevalence of this phenomenon may make it easier for us to study and better understand the underlying mechanisms in the brain behind such synesthetic effects. Our findings allow us to begin to build a picture of the types of people who may have this Visual Ear."

Insights, Analysis, and Developments

Attribution/Source(s): This peer reviewed publication was selected for publishing by the editors of Disabled World (DW) due to its relevance to the disability community. Originally authored by City University London and published on 2018/03/20, this content may have been edited for style, clarity, or brevity.