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Le Touquet – Paris-Plage, France

Benedetto S.,CHArt LUTIN EA 4004 | Benedetto S.,Paris 8 University | Carbone A.,CHArt LUTIN EA 4004 | Carbone A.,Paris 8 University | And 8 more authors.
Computers in Human Behavior

In the era of small screens, traditional reading (i.e. left-to-right, top-to-bottom) is called into question and rapid serial visual presentation (RSVP) represents one of the main alternatives. RSVP consists of displaying in sequential order one or more words at a time, thus minimizing saccades and eye blinks. Recently, a RSVP application has received a lot of media attention: it is the case of Spritz. According to Spritz's developers, the elimination of saccades should reduce visual fatigue and improve comprehension. In this study, we had people read on a computer screen a selected part of a book either with Spritz or in the traditional way. Results seem to contradict these claims. The fact that Spritz suppresses parafoveal processing and regressions (i.e. rereadings of words) negatively affected literal comprehension. Furthermore, the important reduction of eye blinks observed for Spritz might contribute to the increase of visual fatigue. © 2015 Elsevier Ltd. Source

Benedetto S.,CHArt LUTIN EA 4004 | Benedetto S.,Paris 8 University | Carbone A.,CHArt LUTIN EA 4004 | Carbone A.,Paris 8 University | And 6 more authors.
Computers in Human Behavior

We investigated the conjoint effect of screen luminance and ambient illuminance on visual fatigue and arousal during prolonged digital reading (one hour) by means of a multidimensional approach based on eye, performance and subjective measures. Two levels of screen luminance (low, high) and two levels of ambient illuminance (low, high) were tested in a 2 × 2 between-subjects design in which participants were arbitrarily allocated to four groups, one for each combined level of luminance and illuminance. Results showed that reading under high levels of screen luminance increases visual fatigue, as reflected by a decrease of eye blinks. Concerning arousal, exposure to higher levels of either luminance or illuminance increased alertness and performance. Faster saccades, increased reading speed and less microsaccades were found under high screen luminance. Fewer regressive saccades and shorter reaction times were observed under high ambient illuminance. However, the reason why some of these measures are sensitive to screen luminance while other to ambient illuminance remains unknown. These findings might have practical implications for the implementation of adaptive brightness solutions and for the online detection of both visual fatigue and arousal levels during digital reading. © 2014 Elsevier Ltd. All rights reserved. Source

Benedetto S.,CHArt LUTIN EA 4004 | Benedetto S.,Paris 8 University | Pedrotti M.,CHArt LUTIN EA 4004 | Pedrotti M.,University Pierre and Marie Curie | And 3 more authors.
Transportation Research Part F: Traffic Psychology and Behaviour

With the aim of studying attentional leftward bias in a driving context, we combined recording of gaze behaviour with a simulated driving task (Lane Change Test - LCT) in spatial symmetry conditions. The LCT requires driving along a straight traffic-free three-lane road, changing lanes according to the information provided by two identical road signs displayed concurrently on both left and right sides of the road. Participants directed most of their attention to the left-hand signs. The prevalent visuospatial nature of the driving task - which is supposed to mostly activate the right cerebral hemisphere - could have caused a contralateral attention shift. The introduction of a secondary task - performed with the right hand, concurrently with the LCT - attenuated the leftward bias. © 2013 Elsevier Ltd. All rights reserved. Source

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