Blind From Birth Still Gesture Like Sighted Speakers
Author: Association for Psychological Science
Published: 2016/04/05 - Updated: 2026/02/20
Publication Details: Peer-Reviewed, Research, Study, Analysis
Category Topic: Visual Aids - Related Publications
Contents: Synopsis - Introduction - Main - Insights, Updates
Synopsis: This research, published in Psychological Science - a journal of the Association for Psychological Science - examines whether sight is necessary for developing language-specific gestures. Led by psychological scientist Seyda Özçaliskan of Georgia State University along with colleagues at the University of Chicago, the study compared 40 congenitally blind adults and 40 sighted adults across English and Turkish speakers. The findings showed that blind and sighted speakers of the same language gestured in remarkably similar patterns, indicating that gestural variation stems from language acquisition itself rather than visual observation of others. This is valuable reading for anyone interested in blindness, nonverbal communication, or language development, and holds particular relevance for people who are blind or visually impaired, as it reinforces that gesture is a natural and integral part of human communication regardless of visual ability - Disabled World (DW).
- Definition: Gesture
Gesture is a form of nonverbal communication in which physical movements of the hands, face, or body convey meaning either alongside or in place of spoken words. Gesturing is processed in the same regions of the brain used for speech and sign language, including Broca's and Wernicke's areas, which points to a deep neurological connection between language and physical expression. People across all cultures gesture when they speak, but the specific ways they gesture tend to vary by language - for example, English speakers often combine manner and path of motion into a single gesture, while Turkish speakers tend to separate them. Research has shown that these patterns are not picked up through visual imitation but are tied to the structure of the language being spoken. Gesture plays a key role in how humans communicate, process information, and interact socially, and its study has significant implications for understanding language development, cognition, and communication in both sighted and blind populations.
Introduction
Sight Is Not Required to Gesture
People the world over gesture when they talk, and they tend to gesture in certain ways depending on the language they speak. Findings from a new study including blind and sighted participants suggest that these gestural variations do not emerge from watching other speakers make the gestures, but from learning the language itself.
A gesture is defined as a form of non-verbal communication or non-vocal communication in which visible bodily actions communicate particular messages, either in place of, or in conjunction with, speech. Gesture is part of body language, which in itself is a type of nonverbal communication, where thoughts, intentions, or feelings are expressed by physical behaviors, such as facial expressions, body posture, gestures, eye movement, touch and the use of space. Gestures can include movement of the hands, face, or other parts of the body. The gesture processing takes place in areas of the human brain such as Broca's and Wernicke's areas - which are also used by speech and sign language.
"Adult speakers who are blind from birth also gesture when they talk, and these gestures resemble the gestures of sighted adults speaking the same language. This is quite interesting, since blind speakers cannot be learning these language-specific gestures by watching other speakers gesture," explains psychological scientist and lead researcher Seyda Özçaliskan of Georgia State University.
The findings are published in Psychological Science, a journal of the Association for Psychological Science.
Main Content
While research had shown that speakers of different languages used gestures in different ways, the origin of these differences was not clear. Özçaliskan and colleagues Ché Lucero and Susan Goldin-Meadow of the University of Chicago realized that they might be able to answer the question by comparing the gestures produced by sighted and congenitally blind individuals who speak the same language.
If people learn to gesture by watching other speakers of the same language, they hypothesized, then individuals who are blind from birth would not produce gestures similar to those of sighted speakers. But if people learn to gesture as a function of learning the language itself, then blind and sighted individuals who speak the same language would gesture in similar ways.
The researchers decided to focus specifically on gestures related to motion across space, which tend to show considerable variation across languages. English speakers, for example, typically combine both the manner of motion (e.g., running) and the path of motion (e.g., entering) into a single gesture. Turkish speakers, on the other hand, produce separate gestures to indicate manner and path.
Özçaliskan and colleagues recruited 40 congenitally blind adults - 20 native English speakers and 20 native Turkish speakers - to participate in the study. They also recruited 40 sighted speakers of each language.
The participants were presented with three-dimensional dioramas that contained a series of figurines depicting motion across space. Some of the scenes showed a figure making a path to a landmark (e.g., running into a house), some showed the figure making a path over a landmark (e.g., flipping over a beam), and others showed a figure making a path from a landmark (e.g., running away from a motorcycle).
Participants explored the scene, using their hands to touch and feel the components; they were told that although the figurine appeared three times in the scene, they should think of her movement as representing a single continuous motion. The participants were then asked to describe the scene.
The results showed that speakers' patterns of gestures diverged according to the language they spoke. Regardless of whether they were sighted or blind, Turkish speakers produced more separated sentence units - in both speech and gesture - compared to English speakers. And sighted and blind English speakers produced more conflated sentence units in their speech and gestures than did Turkish speakers.
"We now know that blind speakers do not all gesture in the same generic way," Goldin-Meadow explains. "Rather, their gestures resemble those of other speakers of the same language."
While the study focused on speech and gesture in English and Turkish, the researchers note that these two languages represent a broader pattern in the world's languages. When it comes to expressing motion in space, Dutch, Swedish, Russian, Icelandic, and Serbo-Croatian are similar to English, while French, Spanish, Hebrew, Japanese cluster with Turkish.
"Together, our findings show that gestures that are produced with speech carry the imprint of the language that they accompany even in the absence of access to native gesture patterns, marking speech as the source of cross-linguistic variation in gesture," Özçalışkan and Goldin-Meadow conclude.
This work was supported by Grant 12-FY08-160 from the March of Dimes Foundation to S. Özçaliskan and S. Goldin-Meadow.
Insights, Analysis, and Developments
Editorial Note: What makes this study so compelling is how neatly it overturns a common assumption - that people gesture the way they do because they have seen others do it. By studying individuals who have never had access to visual input, the researchers isolated language itself as the driving force behind gestural patterns across cultures. The practical takeaway matters: gesture is not learned through imitation but is woven into the fabric of language. For blind individuals, this finding affirms something many already know intuitively - that their communication is every bit as rich and linguistically structured as that of sighted speakers. It also raises worthwhile questions for educators, speech therapists, and accessibility professionals about how we think about nonverbal communication in people with visual impairments - Disabled World (DW).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 Association for Psychological Science and published on 2016/04/05, this content may have been edited for style, clarity, or brevity.