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.
Department of Physiology and Biosignaling, Osaka University Graduate School of Medicine, Suita 565-0871, Japan. H.Sasaki@Physiol.com
Hitoshi
H
Sasaki
Sadatsugu
S
Sakane
Takuya
T
Ishida
Masayoshi
M
Todorokihara
Tahei
T
Kitamura
Ryozo
R
Aoki
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*