In this article, I describe how to use an inexpensive instrument to create visual and auditory classroom demonstrations. The function generator is an instrument that produces time-varying electrical signals of manipulable frequency, waveform, and amplitude. Sending these signals to a speaker or a light-emitting diode can demonstrate how specific characteristics of auditory or visual stimuli, respectively, relate to perceptual experiences.
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References
1.
BrownJ. L. (1965). Flicker and intermittent stimulation. In GrahamC. (Ed.), Vision and visual perception (pp. 251–320). New York: Wiley.
2.
CaelliT. (1981). Visual perception: Theory and practice.Oxford, England: Pergamon.
3.
GoldsteinE. B. (1994). Psychology.Pacific Grove, CA: Brooks/Cole.
4.
GrosofskyA. (1996). Audition laboratory activities for teaching sensation and perception. Teaching of Psychology, 23, 49–51.
5.
HallettP. (1991). Some limitations to human peripheral vision. In KulikowskiJ.WalshV.MurrayI. (Eds.), Vision and visual dysfunction, Vol. 5: Limits of vision (pp. 44–80). Boca Raton, FL: CRC.
6.
IrtelH. (1992). Color vision demonstrations on an IBM PC/AT with VGA. Behavior Research Methods, Instruments, and Computers, 24, 88–89.
7.
LuceR. D. (1993). Sound and hearing: A conceptual introduction.Hillsdale, NJ: Lawrence Erlbaum Associates, Inc.
8.
PittengerD. (1996). Perception laboratory: A computer program to demonstrate perceptual phenomena. Teaching of Psychology, 23, 46–48.
9.
RippsH.WealeR. (1976). Temporal analysis and resolution. In DavsonH. (Ed.), The eye, 2A: Visual function in man (pp. 186–217). New York: Academic.
10.
WeitenW. (1995). Psychology: Themes and variations (3rd ed.). Pacific Grove, CA: Brooks/Cole.
