Featured Research

from universities, journals, and other organizations

Textured images help tactile recognition for the blind

Date:
October 2, 2013
Source:
CNRS (Délégation Paris Michel-Ange)
Summary:
The use of different materials with varied textures improves the recognition of tactile images by young blind people. This result emphasizes that early, regular use of tactile material by blind children is necessary to improve recognition through touch.

The use of different materials with varied textures improves the recognition of tactile images by young blind people, researchers from the Laboratoire de psychologie et neurocognition (LPNC) (CNRS/Université Pierre Mendès France/ Savoie University) have shown. This result, which was recently published in the Journal of Experimental Psychology Applied was achieved in collaboration with Geneva University's Faculté de psychologie et des sciences de l'éducation and Les Doigts Qui Rêvent (Dreaming Fingers) in Talant (Côte-d'Or, France). Among other factors, the researchers emphasise that early, regular use of tactile material by blind children is necessary to improve recognition through touch.

Related Articles


From birth, sighted children live in a world in which images, particularly in children's books, are universally present in their family and/or school surroundings. For blind or partially sighted children, the situation seems very different. Not only are they deprived of natural visual stimuli that other children receive daily, but young blind children are also deprived of all the visual images in books, due to lack of suitable material.

Researchers from the LPNC (CNRS/Université Pierre Mendès France/Savoie University), in collaboration with the publishers Les Doigts qui Rêvent, worked with 23 totally blind children (who only see the contrast between day and night), and who were blind from birth or lost their sight in the first year. They compared tactile image recognition using three techniques: -- lines in relief but with a single material (identical texture) -- Thermoforming: the whole image is in relief but still with the same material (identical texture) -- various materials with different textures (fur, foam, wallpaper, etc.)

The experimental material comprised 24 tactile images (8 objects illustrated using the three techniques) portraying 4 categories of objects (fruit, kitchen utensils, animals, vehicles). The children were asked to identify each drawing as quickly and accurately as possible. To make this easier, they were given the names of the object categories before the images were presented in random order. The researchers then recorded the percentage of correctly identified images.

The results show that blind children are better at recognizing textured images than other illustration techniques. The researchers' experience also showed that early-blind children who are regularly presented with tactile images are better at identifying these illustrations than those who rarely or never use them. For blind children therefore, it seems that interpreting tactile images is not automatic and requires practice.


Story Source:

The above story is based on materials provided by CNRS (Délégation Paris Michel-Ange). Note: Materials may be edited for content and length.


Journal Reference:

  1. Anne Theurel, Arnaud Witt, Philippe Claudet, Yvette Hatwell, Edouard Gentaz. Tactile picture recognition by early blind children: The effect of illustration technique.. Journal of Experimental Psychology: Applied, 2013; 19 (3): 233 DOI: 10.1037/a0034255

Cite This Page:

CNRS (Délégation Paris Michel-Ange). "Textured images help tactile recognition for the blind." ScienceDaily. ScienceDaily, 2 October 2013. <www.sciencedaily.com/releases/2013/10/131002092141.htm>.
CNRS (Délégation Paris Michel-Ange). (2013, October 2). Textured images help tactile recognition for the blind. ScienceDaily. Retrieved October 25, 2014 from www.sciencedaily.com/releases/2013/10/131002092141.htm
CNRS (Délégation Paris Michel-Ange). "Textured images help tactile recognition for the blind." ScienceDaily. www.sciencedaily.com/releases/2013/10/131002092141.htm (accessed October 25, 2014).

Share This



More Health & Medicine News

Saturday, October 25, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

IKEA Desk Converts From Standing to Sitting With One Button

IKEA Desk Converts From Standing to Sitting With One Button

Buzz60 (Oct. 24, 2014) — IKEA is out with a new convertible desk that can convert from a sitting desk to a standing one with just the push of a button. Jen Markham explains. Video provided by Buzz60
Powered by NewsLook.com
Ebola Protective Suits Being Made in China

Ebola Protective Suits Being Made in China

AFP (Oct. 24, 2014) — A factory in China is busy making Ebola protective suits for healthcare workers and others fighting the spread of the virus. Duration: 00:38 Video provided by AFP
Powered by NewsLook.com
WHO: Millions of Ebola Vaccine Doses by 2015

WHO: Millions of Ebola Vaccine Doses by 2015

AP (Oct. 24, 2014) — The World Health Organization said on Friday that millions of doses of two experimental Ebola vaccines could be ready for use in 2015 and five more experimental vaccines would start being tested in March. (Oct. 24) Video provided by AP
Powered by NewsLook.com
Doctor in NYC Quarantined With Ebola

Doctor in NYC Quarantined With Ebola

AP (Oct. 24, 2014) — An emergency room doctor who recently returned to the city after treating Ebola patients in West Africa has tested positive for the virus. He's quarantined in a hospital. (Oct. 24) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins