Cognitive performance baseline measurement and eye movement performance measures

2005 ◽  
Author(s):  
Erik S. Viirre ◽  
Bradley Chase ◽  
Yi-Fang Tsai
Keyword(s):  
Eye Movement ◽  
Cognitive Performance ◽  
Performance Measures ◽  
Baseline Measurement ◽  
Movement Performance

scholarly journals Strong age but weak sex effects in eye movement performance in the general adult population: Evidence from the Rhineland Study

2021 ◽  
Vol 178 ◽  
pp. 124-133
Author(s):  
Annabell Coors ◽  
Natascha Merten ◽  
David D. Ward ◽  
Matthias Schmid ◽  
Monique M.B. Breteler ◽  
...  
Keyword(s):  
Eye Movement ◽  
Adult Population ◽  
Sex Effects ◽  
Movement Performance ◽  
General Adult Population

Detection of the Sleep Stages Throughout Non-Obtrusive Measures of Inter-Beat Fluctuations and Motion: Night and Day Sleep of Female Shift Workers

2017 ◽  
Vol 16 (04) ◽  
pp. 1750033 ◽  
Author(s):  
Martin O. Mendez ◽  
Elvia R. Palacios-Hernandez ◽  
Alfonso Alba ◽  
Juha M. Kortelainen ◽  
Mirja L. Tenhunen ◽  
...  
Keyword(s):  
Eye Movement ◽  
Performance Measures ◽  
Night Shift ◽  
Sleep Stages ◽  
Support Vector ◽  
Rapid Eye Movement ◽  
Sleep Staging ◽  
Kappa Index ◽  
Extensive Evaluation ◽  
Night And Day

Automatic sleep staging based on inter-beat fluctuations and motion signals recorded through a pressure bed sensor during sleep is presented. The analysis of the sleep was based on the three major divisions of the sleep time: Wake, non-rapid eye movement (nREM) and rapid eye movement (REM) sleep stages. Twelve sleep recordings, from six females working alternate shift, with their respective annotations were used in the study. Six recordings were acquired during the night and six during the day after a night shift. A Time-Variant Autoregressive Model was used to extract features from inter-beat fluctuations which later were fed to a Support Vector Machine classifier. Accuracy, Kappa index, and percentage in wake, REM and nREM were used as performance measures. Comparison between the automatic sleep staging detection and the standard clinical annotations, shows mean values of [Formula: see text]% for accuracy [Formula: see text] for kappa index, and mean errors of 5% for sleep stages. The performance measures were similar for night and day sleep recordings. In this sample of recordings, the results suggest that inter-beat fluctuations and motions acquired in non-obtrusive way carried valuable information related to the sleep macrostructure and could be used to support to the experts in extensive evaluation and monitoring of sleep.

Genetic and environmental influences on pupil performances

Twin Research ◽  
1999 ◽  
Vol 2 (3) ◽  
pp. 183-195 ◽  
Author(s):  
Siv Fischbein ◽  
Ruth Guttman ◽  
Michael Nathan
Keyword(s):  
Gender Differences ◽  
Comparative Study ◽  
Cognitive Performance ◽  
Performance Measures ◽  
Environmental Influences ◽  
Genetic Influences ◽  
Educational Setting ◽  
Time Points ◽  
A Current ◽  
Israeli Kibbutz

AbstractThe results presented in this paper are part of a current comparative study of genetic and environmental influences in three educational settings: Stockholm, Jerusalem and the Israeli kibbutz. We specifically wanted to investigate whether a more restrictive educational setting would decrease genetic influences. Here we report on comparisons of cognitive performance measures at several time points for twins/controls, boys/girls and within-pair similarity in MZ, DZ and controls. The tests used were the Raven Progressive Matrices, verbal, reading comprehension and arithmetic. The results show no differences between twins and controls, whilst gender differences seem to be smallest in the Stockholm sample and largest in Jerusalem. A pattern of genetic influences on cognitive performance was also clearly visible in Jerusalem. In Stockholm shared environmental influences at home and at school seemed even stronger than in the kibbutz. No consistent differences were found between tests or occasions.

scholarly journals Application of Eye Tracking in Puzzle Games for Adjunct Cognitive Markers: Pilot Observational Study in Older Adults (Preprint)

2020 ◽  
Author(s):  
Christine Krebs ◽  
Michael Falkner ◽  
Joel Niklaus ◽  
Luca Persello ◽  
Stefan Klöppel ◽  
...  
Keyword(s):  
Visual Search ◽  
Eye Tracking ◽  
Executive Functions ◽  
Eye Movement ◽  
Cognitive Performance ◽  
Gaze Behavior ◽  
Laptop Computer ◽  
Board Size ◽  
Older Subjects ◽  
Puzzle Games

BACKGROUND Recent studies suggest that computerized puzzle games are enjoyable, easy to play, and engage attentional, visuospatial, and executive functions. They may help mediate impairments seen in cognitive decline in addition to being an assessment tool. Eye tracking provides a quantitative and qualitative analysis of gaze, which is highly useful in understanding visual search behavior. OBJECTIVE The goal of the research was to test the feasibility of eye tracking during a puzzle game and develop adjunct markers for cognitive performance using eye-tracking metrics. METHODS A desktop version of the Match-3 puzzle game with 15 difficulty levels was developed using Unity 3D (Unity Technologies). The goal of the Match-3 puzzle was to find configurations (target patterns) that could be turned into a row of 3 identical game objects (tiles) by swapping 2 adjacent tiles. Difficulty levels were created by manipulating the puzzle board size (all combinations of width and height from 4 to 8) and the number of unique tiles on the puzzle board (from 4 to 8). Each level consisted of 4 boards (ie, target patterns to match) with one target pattern each. In this study, the desktop version was presented on a laptop computer setup with eye tracking. Healthy older subjects were recruited to play a full set of 15 puzzle levels. A paper-pencil–based assessment battery was administered prior to the Match-3 game. The gaze behavior of all participants was recorded during the game. Correlation analyses were performed on eye-tracking data correcting for age to examine if gaze behavior pertains to target patterns and distractor patterns and changes with puzzle board size (set size). Additionally, correlations between cognitive performance and eye movement metrics were calculated. RESULTS A total of 13 healthy older subjects (mean age 70.67 [SD 4.75] years; range 63 to 80 years) participated in this study. In total, 3 training and 12 test levels were played by the participants. Eye tracking recorded 672 fixations in total, 525 fixations on distractor patterns and 99 fixations on target patterns. Significant correlations were found between executive functions (Trail Making Test B) and number of fixations on distractor patterns (<i>P</i>=.01) and average fixations (<i>P</i>=.005). CONCLUSIONS Overall, this study shows that eye tracking in puzzle games can act as a supplemental source of data for cognitive performance. The relationship between a paper-pencil test for executive functions and fixations confirms that both are related to the same cognitive processes. Therefore, eye movement metrics might be used as an adjunct marker for cognitive abilities like executive functions. However, further research is needed to evaluate the potential of the various eye movement metrics in combination with puzzle games as visual search and attentional marker.

scholarly journals When hand movements improve eye movement performance

2016 ◽  
Vol 16 (12) ◽  
pp. 374
Author(s):  
Jolande Fooken ◽  
Kathryn Lalonde ◽  
Miriam Spering
Keyword(s):  
Eye Movement ◽  
Hand Movements ◽  
Movement Performance
Sign in / Sign up

Export Citation Format

Share Document