Tachsitoscope

A mechanical or electrical device that displays an image for a pre-decided period of time.

1. Tachistoscope Dr Rajesh Verma Assistant Professor in Psychology Govt. College Adampur, Hisar (Haryana) 8/7/2020 PPT slides © Dr Rajesh Verma FGM Govt Collage Adampur, Hisar, Haryana

2. Brief Introduction Tachistoscope is derived from the Greek words ‘ tachys ’ meaning swift and ‘ skopion ’ meaning instrument for viewing or observing ( Godning , 2003). A mechanical or electrical device that displays an image for a pre-decided period of time. Time Range => 2 to .01 Seconds 8/7/2020 PPT slides © Dr Rajesh Verma FGM Govt Collage Adampur, Hisar, Haryana

3. The first tachistoscope was originally described by the German physiologist A.W. Volkmann in 1859. It was also used during WWII in the training of fighter pilots to help them identify aircraft silhouettes as friend or foe ( Godning , 2003). Video Link – https://www.youtube.com /watch?v=kq3hE_S7M x0&t=304s 8/7/2020 PPT slides © Dr Rajesh Verma FGM Govt Collage Adampur, Hisar, Haryana

4. Three types 1. Mechanical 2. Electrical 3. Computer based applications 8/7/2020 PPT slides © Dr Rajesh Verma FGM Govt Collage Adampur, Hisar, Haryana

5. Applications 1. To measure Span of Attention in Psychology and to improve reading speed. 2. Optometry – Enhance visual functions. 3. Military ( Renshaw (1945) in WWII) and Police training. 4. Academics - To improve reading speed. 5. Sports. 6. Marketing research – Memorability of package designs. 8/7/2020 PPT slides © Dr Rajesh Verma FGM Govt Collage Adampur, Hisar, Haryana

6. References: 1. Godnig , E. C. (2003). The Tachistoscope: Its History and Uses. Journal of Behavioral Optometry, 14(2), 39. 2. Berens, C., Girard, L., Fonda, G., Sells, S. B. (1957). Effects of tachistoscopic training. American Journal of Ophthalmology, 44(3), 1-48. 8/7/2020 PPT slides © Dr Rajesh Verma FGM Govt Collage Adampur, Hisar, Haryana

7. [email protected] Next Discussion Chronoscope: simple Reaction time apparatus 8/7/2020 PPT slides © Dr Rajesh Verma FGM Govt Collage Adampur, Hisar, Haryana