PMID- 4056631
OWN - NLM
STAT- MEDLINE
DCOM- 19851203
LR  - 20190919
IS  - 0148-5598 (Print)
IS  - 0148-5598 (Linking)
VI  - 9
IP  - 3
DP  - 1985 Jun
TI  - Screen design and visual evoked potentials.
PG  - 145-53
AB  - In this paper we present a method to complement the sophisticated mathematical 
      analyses on screen designs. The use of an objective measure of screen "goodness" 
      is employed, namely, the Visual Evoked Potential (VEP) of the humans performing 
      the test. After the screen is designed, the text on the screen is transformed 
      into an intensity pattern using a recursive algorithm. This intensity pattern is 
      used as a stimulus to obtain wave forms from the scalp of the subject, and the 
      wave forms are analyzed as to their frequency content. A 2-D Fourier transform of 
      the screen design is performed and the frequency components of the power spectrum 
      are compared to the frequency components of the wave form. Our results indicate 
      that when a "balanced" and well-designed screen is used as a stimulus, the second 
      harmonic of the VEP wave form is always smaller than the first harmonic. The 
      implications of such an analysis are discussed.
FAU - Micheli-Tzanakou, E
AU  - Micheli-Tzanakou E
FAU - Brown, B
AU  - Brown B
FAU - Ingeholm, J Jr
AU  - Ingeholm J Jr
LA  - eng
PT  - Journal Article
PL  - United States
TA  - J Med Syst
JT  - Journal of medical systems
JID - 7806056
SB  - IM
MH  - Adult
MH  - *Data Display
MH  - *Evoked Potentials, Visual
MH  - Fourier Analysis
MH  - Humans
EDAT- 1985/06/01 00:00
MHDA- 2001/03/28 10:01
CRDT- 1985/06/01 00:00
PHST- 1985/06/01 00:00 [pubmed]
PHST- 2001/03/28 10:01 [medline]
PHST- 1985/06/01 00:00 [entrez]
AID - 10.1007/BF00996199 [doi]
PST - ppublish
SO  - J Med Syst. 1985 Jun;9(3):145-53. doi: 10.1007/BF00996199.