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SPECIFIC FEATURES OF THE COMPREHENSION OF TEXTS AND STORY PICTURES BY ADOLESCENTS WITH INTELLECTUAL DISTURBANCES

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Zashchirinskaia O. V.
Acta Neuropsychologica
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2020
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vol. 18(2)
221-231
PL
The present article addresses the peculiarities of comprehending visual stimuli by adolescents with intellectual disturbances. We have studied the ability of school students to analyse and synthesise the meaning of the text and a series of story pictures, to successively retell their content, and distinguish the main semantic constructs. We examined 60 adolescents: 20 normatively developing students from secondary school, 20 students with learning disabilities and 20 children with a clinical diagnosis of "intellectual disturbances". The age of the students ranged from 15 to 19 years old (the average age was 16 years 1 month old). The age range was due to the presence of adolescents with intellectual disturbances. The examination involved 25 girls and 35 boys. The main method of research is authorial questionnaire. A small excerpt from the Russian folk tale "The Wolf and the Seven Young Goats" is used as a verbal stimulus, and Bidstrup comic cartoons – as a non-verbal stimulus. The technique of eye-tracking is used as a research method that allows registering the number of fixations, duration of gaze and length of saccades. The differences in the comprehension of text and picture visual stimuli in students with different levels of intelligence have been determined. In the case of intellectual disturbances, the duration of fixations significantly increases when perceiving the texts. The level of intelligence affects the parameters of the recognition and decoding of the visual information significantly. It was found that the specifics of understanding texts and subject pictures by adolescents with intellectual disturbances are due to thinking passivity and different formats of information.
2
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Functional relationships between gaze behavior and movement kinematics when performing high bar dismounts – an exploratory study

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Heinen T., Velentzas K., Vinken P. M.
Human Movement
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2012
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vol. 13
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issue 3
218-224
EN
Purpose. The aims of this study were, first, to investigate visual spotting and, second, to explore the functional relationships between movement structure and gaze behavior in gymnasts as they perform preparatory giant swings (traditional and scooped technique) and dismounts (single straight and double tucked salto) with increasing difficulty on the high bar. It was predicted that visual spotting would occur in all experimental tasks. Methods. Relationships between gaze behavior and movement kinematics were explored to provide a clearer picture of how gaze is interconnected with the kinematics of dismounts on the high bar. For this purpose, kinematic parameters were measured with an optical movement-analysis system while gaze behavior was measured by using a portable and wireless eye-tracking system. Results. The measurement of gaze behavior revealed that gymnasts use visual spotting in all three tasks showing fixations throughout the whole movement. Each task was furthermore characterized by a sequence of visual fixations that was thought to serve specific movement goals. In particular, fixations during the downswing phase of the preparatory giant swings were significantly correlated with the movement phases when beginning the hip extension and flexion in the “kick through” as well as with the athlete’s distance of flight during the dismounts. Conclusions. The findings suggest that gymnasts can use visual spotting during preparatory giant swings and dismounts on the high bar and that there are functional relationships between different fixations and specific movement goals.
3
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COGNITIVE FUNCTIONING AND SAFETY DETERMINANTS IN THE WORK OF A TRAIN DRIVERS

100%
Kata G., Poleszak W.
Acta Neuropsychologica
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2021
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vol. 19(2)
277-289
EN
The reports of committees investigating the causes of rail accidents indicate the significance of the so-called human factor (e.g. UTK, 2019). In addition to issues related to perso nality functioning, the organization and culture of work, this also includes variables related to the cognitive functioning of train drivers themselves. These are significant factors that determine the occurrence of accidents that result from ignoring or not spotting railway signals and signs. The purpose of this study was to verify the relationship between cognitive functioning and safety determinants, which was measured using an eye-tracking technique. The application of this technique was intended to check its usefulness in the field of railway traffic safety and to achieve an approximate simulation environment of the real working conditions of a train driver. In the present study, the Vienna Test System was used as a me - thod for the determination of cognitive functioning. Based on the variables described in the subject literature, the following tests were applied: Determination Test, Visual Memory Test, Visual Pursuit Test, Reaction Time, Cognitrone, Signal Detection and Vigilance. In addition to computer cognitive tests, an eye-tracking test method was designed based on a film recorded in real train-driving situation. Measures describing areas of interest (AOI) that are crucial for safety were analysed. Due to the pilot nature of the research, only 10 passenger train drivers participated in the study. The results of the study showed a link between the cognitive functioning of the train drivers and visual security determinants. Significant correlations were found with stress tolerance resulting from cognitive overload, visual memory, alertness and concentration ability under time pressure. The study confirmed the significant role of the train driver's cogni- tive functioning in the analysis and perception of safety-critical signals. The use of an eye-tracking method has delivered results that are in agreement with studies based on other methods. This pro- vides a sound basis for the continuation of research using eye- tracking in the assessment of rail transport safety. In the future, the research should be extended to include an analysis of the effect of demographic and situational variables (types of signalling devices and signage) and a broader model of the relationship between cog- nitive functioning and the driver's visual attention. This will provide data that is crucial for the prevention of railway incidents and the development of training plans for train drivers.
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