Color names, stimulus color, and their subjective links

2016 ◽  
Vol 42 (1) ◽  
pp. 89-101 ◽  
Author(s):  
Liliana Albertazzi ◽  
Osvaldo Da Pos
Keyword(s):  
Stimulus Color

scholarly journals Humans incorporate trial-to-trial working memory uncertainty into rewarded decisions

2020 ◽  
Vol 117 (15) ◽  
pp. 8391-8397 ◽  
Author(s):  
Maija Honig ◽  
Wei Ji Ma ◽  
Daryl Fougnie
Keyword(s):  
Decision Making ◽  
Working Memory ◽  
Action Planning ◽  
Informational Content ◽  
Sources Of Information ◽  
Prior Beliefs ◽  
Stimulus Color ◽  
Uncertainty Information ◽  
Best Fit ◽  
With Memory

Working memory (WM) plays an important role in action planning and decision making; however, both the informational content of memory and how that information is used in decisions remain poorly understood. To investigate this, we used a color WM task in which subjects viewed colored stimuli and reported both an estimate of a stimulus color and a measure of memory uncertainty, obtained through a rewarded decision. Reported memory uncertainty is correlated with memory error, showing that people incorporate their trial-to-trial memory quality into rewarded decisions. Moreover, memory uncertainty can be combined with other sources of information; after inducing expectations (prior beliefs) about stimuli probabilities, we found that estimates became shifted toward expected colors, with the shift increasing with reported uncertainty. The data are best fit by models in which people incorporate their trial-to-trial memory uncertainty with potential rewards and prior beliefs. Our results suggest that WM represents uncertainty information, and that this can be combined with prior beliefs. This highlights the potential complexity of WM representations and shows that rewarded decision can be a powerful tool for examining WM and informing and constraining theoretical, computational, and neurobiological models of memory.

Influence of stimulus color on the control of reaching-grasping movements

2001 ◽  
Vol 137 (1) ◽  
pp. 36-44 ◽  
Author(s):  
Maurizio Gentilucci ◽  
Francesca Benuzzi ◽  
Luca Bertolani ◽  
Massimo Gangitano
Keyword(s):  
Stimulus Color

Color Discriminability for Partially Seeing Children

1971 ◽  
Vol 38 (3) ◽  
pp. 223-228 ◽  
Author(s):  
William A. Myers
Keyword(s):  
Color Combination ◽  
Stimulus Color ◽  
The Subject

This study proposed to answer the following question: Do partially seeing children see the Snellen E, printed in selected colored inks on various colored backgrounds, at different distances in terms of initial recognition and best focus? Thirty myopic children were tested in Los Angles County District. Forty-two stimulus color combination cards were randomly presented out of focus. The subject was to report the figure's directionality and tell at what distance best focus was obtained. Different combinations yielded various discriminabilities.

scholarly journals Pupil responses to stimulus color, structure and light flux increments in the rhesus monkey

1998 ◽  
Vol 38 (21) ◽  
pp. 3353-3358 ◽  
Author(s):  
Paul D.R Gamlin ◽  
Hongyu Zhang ◽  
Alistair Harlow ◽  
John L Barbur
Keyword(s):  
Rhesus Monkey ◽  
Light Flux ◽  
Stimulus Color ◽  
Color Structure

Infants' long-term memory for stimulus color.

1984 ◽  
Vol 20 (3) ◽  
pp. 435-440 ◽  
Author(s):  
Jeffrey W. Fagen
Keyword(s):  
Long Term Memory ◽  
Term Memory ◽  
Stimulus Color

scholarly journals Poor peripheral binding depends in part on stimulus color

2020 ◽  
Vol 82 (7) ◽  
pp. 3606-3617
Author(s):  
Karen L. Gunther ◽  
Mason R. McKinney
Keyword(s):  
Stimulus Color

Effects of Light Wavelengths on the Performance of Color Absolute Judgments

2007 ◽  
Vol 364-366 ◽  
pp. 942-948
Author(s):  
Shih Miao Huang ◽  
Jui Chang Lin
Keyword(s):  
Standard Stimulus ◽  
Color Space ◽  
Judgment Task ◽  
Absolute Judgment ◽  
Just Noticeable Difference ◽  
Stimulus Color ◽  
Clockwise Direction ◽  
Color Differences ◽  
Comparison Of The Results ◽  
Color Judgment

Optically, humans can discriminate between colors as close as 2nm in wavelength in relative judgment task. However, there is little research to discuss color differences for absolute color judgments in which the comparison is held in memory. Therefore, the intent of this study was to explore effects of wavelengths on the Just Noticeable Difference (JND) of absolute judgments in our perceptual world. A color identification task was utilized to investigate the JND of wavelengths. In the experiment, the Standard Stimulus Color (SSC) and the Comparison Stimulus Color (CSC) were successively presented. The SSC which was presented first must be stored in working memory and recalled when the second color, CSC, is presented. Subjects had to decide if the CSC matched the SSC. Each CSC was presented four times for each subject in the experiment. The CSC wavelength that was recognized as different from the SSC twice was designed as a JND wavelength. Five SSC wavelengths with 100% saturation and 100% lightness were chosen from the hue circle of HLS color space which included 360 hues. Because the hue circle is a circle, the CSC may be on both sides of a SSC in the hue circle. The CSC hue which may be located on the clockwise direction or counter clockwise direction of the SSC was called clockwise direction color (CD) or counter clockwise direction color (CCD), respectively. The wavelengths expressed with HLS color space were translated into coordination of CIE1931 (x, y)-chromaticity diagram. The results indicated that threshold sensitivities varied for different wavelengths on absolute judgment tasks. The lights with longest or shortest wavelength had greater JNDs than ones with middle wavelengths for absolute judgment tasks. The comparison of the results of the experiment on absolute color judgment tasks and MacAdam’s (1942) findings for relative color judgment tasks were also discussed.

Sign in / Sign up

Export Citation Format

Share Document