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Journal of Integrative Neuroscience  2018, Vol. 17 Issue (3): 287-290    DOI: 10.31083/JIN-170057
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Microsaccadic behavior when developing a complex dynamical activity
Gerardo Fernández1, *(), Nora P. Rotstein2, 3, Luis E. Politi2, 3, Liliana Castro2, Osvaldo Agamennoni1, 2
1 Instituto de Investigaciones en Ingeniería Eléctrica (UNS-CONICET), Bahía Blanca, Buenos Aires, Argentina
2 Universidad Nacional del Sur (UNS), Bahía Blanca, Argentina
3 Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB) (UNS-CONICET), Bahía Blanca, Buenos Aires, Argentina
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Abstract  

Microsaccades are sensitive to changes of perceptual inputs as well as modulations of cognitive states. There are just a few works analyzing microsaccades while subjects are processing complex information and fewer when subjects make predictions about upcoming events. To evaluate whether contextual predictability might change microsaccadic behavior, microsaccades were evaluated for twenty-one subjects when reading 40 regular sentences and 40 proverbs. Maxjump was defined as the word with the largest difference between the cloze predictability of two consecutive words. Analysis of microsaccades while reading proverbs and regular sentences revealed that microsaccadic rate on words before Maxjump, during Maxjump and words after Maxjump varied depending on the kind of sentence and on the word predictability. Words of low and high predictability required either less or more microsaccades to previous words, during and on Maxjump, depending upon the semantic context and a readers' predictions of upcoming words. The present study demonstrates that the rate of microsaccades showed significant differences for reading either proverbs or regular sentences. Hence, evaluation of microsaccades while reading sentences with different contextual predictability may provide information concerning specific effects of cue attention during a complex task.

Key words:  Microsaccade      reading      proverbs      attentional cue      predictions     
Submitted:  22 June 2017      Accepted:  17 October 2017      Published:  15 August 2018     
*Corresponding Author(s):  Gerardo Fernández     E-mail:  gerardo.fernandez@uns.edu.ar

Cite this article: 

Gerardo Fernández, Nora P. Rotstein, Luis E. Politi, Liliana Castro, Osvaldo Agamennoni. Microsaccadic behavior when developing a complex dynamical activity. Journal of Integrative Neuroscience, 2018, 17(3): 287-290.

URL: 

https://jin.imrpress.com/EN/10.31083/JIN-170057     OR     https://jin.imrpress.com/EN/Y2018/V17/I3/287

Fig. 1.  The fixations analyzed are divided in words with low and high predictability. For each group of words the microsaccade rate prior to maxjump, during maxjump and after maxjump were analyzed. Mean microsaccade rate corresponding to proverbs (red) and regular sentences (turqoise) are illustrated.

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