Suprathreshold stochastic resonance in visual signal detection.
The present study aimed to demonstrate stochastic resonance (SR) for a visual signal above the threshold by using a two-alternative forced-choice protocol. The percent correct response enhanced at non-zero intensity of noise, while decreased with more intense noise. SR for the suprathreshold signals was found for signals with relatively low intensity above the threshold, and disappeared for more intense signals. These findings show the suprathreshold SR in the visual perception.
Sasaki
Hitoshi
H
Department of Physiology and Biosignaling, Osaka University Graduate School of Medicine, Suita 565-0871, Japan. H.Sasaki@Physiol.com
Sakane
Sadatsugu
S
Ishida
Takuya
T
Todorokihara
Masayoshi
M
Kitamura
Tahei
T
Aoki
Ryozo
R
D000161:Acoustic Stimulation / Q000379:methods; D000293:Adolescent; D000328:Adult; D000704:Analysis of Variance; D001307:Auditory Perception / Q000502:physiology; D005260:Female; D006801:Humans; D008297:Male; D008959:Models, Neurological; D009622:Noise; D010775:Photic Stimulation / Q000379:methods; D011601:Psychophysics / Q000379:methods; D011930:Reaction Time / Q000502:physiology; D012684:Sensory Thresholds / Q000502:physiology*; D017603:Signal Detection, Psychological / Q000502:physiology*; D013269:Stochastic Processes; D014796:Visual Perception / Q000502:physiology*