Koherentas kustības uztveres sliekšņa noteikšana ar dažādām psihofizikālajām metodēm
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Latvijas Universitāte
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Abstract
Maģistra darbs ir uzrakstīts latviešu valodā uz 45 lapām. Tas satur 28 attēlus, 2 tabulas un 40 atsauces uz literatūras avotiem.
Darba mērķis: Noteikt koherentas kustības uztveres slieksni, izmantojot dažādas psihofizikālās metodes.
Hipotēze: Izmantojot konstantā stimula metodi koherentas kustības sliekšņa novērtēšanā, iegūstams augstāks slieksnis nekā ar adaptīvo “trepju” metodi.
Eksperimenta dalībnieki: 20 dalībnieki, 20-30 gadus veci.
Metode: Datorizēta programma, ar kuras algoritma palīdzību uz datora ekrāna tiek projicēts stimuls – koherenti punkti.
Rezultāti: Ar konstantā stimula metodi iegūstams augstāks slieksnis nekā ar adaptīvo “trepju” metodi, taču iegūtie rezultāti ir salīdzināmi.
Atslēgas vārdi: kustība, kustības uztvere, psihofizikālās pētījumu metodes, adaptīvā “trepju” metode, konstantā stimula metode
The Master Thesis is written in Latvian on 45 pages. It contains 28 figures, 2 tables and 40 bibliographic references. Objective: To determine coherent motion threshold using different psychophysical methods. Hypothesis: Using a constant stimulus method for coherent motion threshold evaluation obtainable threshold is higher than with the adaptive staircase procedure. Participants of the experiment: 20 participants, 20-30 years old. Method: Computer – based program, through which algorithm stimuli – coherent points are displayed on a computer screen. Results: With a constant stimulus method obtained threshold is higher than with the adaptive staircase procedure, but the results are comparable. Key words: motion, motion perception, psychophysical methods, adaptive staircase procedure, method of constant stimuli
The Master Thesis is written in Latvian on 45 pages. It contains 28 figures, 2 tables and 40 bibliographic references. Objective: To determine coherent motion threshold using different psychophysical methods. Hypothesis: Using a constant stimulus method for coherent motion threshold evaluation obtainable threshold is higher than with the adaptive staircase procedure. Participants of the experiment: 20 participants, 20-30 years old. Method: Computer – based program, through which algorithm stimuli – coherent points are displayed on a computer screen. Results: With a constant stimulus method obtained threshold is higher than with the adaptive staircase procedure, but the results are comparable. Key words: motion, motion perception, psychophysical methods, adaptive staircase procedure, method of constant stimuli