Effects of tryptophan depletion on Poggendorff illusion, corner Poggendorff illusion, and attention.
The effects of a tryptophan-free amino acid mixture on Poggendorff illusion, corner Poggendorff illusion, and attention were investigated with 12 male subjects who ingested either a balanced amino acid mixture or a tryptophan-free mixture, the latter known to cause a marked depletion of brain tryptophan and serotonin. No significant difference between the two mixtures on the perceptual illusions was found.
Antonietti
A
A
University of Milan, Italy.
Pascarella
A
A
Masini
R
R
Moja
E A
EA
D000328:Adult; D001288:Attention / Q000502:physiology*; D004193:Discrimination Learning / Q000502:physiology; D005366:Figural Aftereffect / Q000502:physiology*; D006801:Humans; D008297:Male; D009433:Neural Inhibition / Q000502:physiology; D009903:Optical Illusions / Q000502:physiology*; D009949:Orientation / Q000502:physiology*; D010364:Pattern Recognition, Visual / Q000502:physiology*; D012701:Serotonin / Q000502:physiology; D014364:Tryptophan / Q000502:physiology*
D012701:Serotonin; D014364:Tryptophan