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Psychological Phenomena and Processes Commons™
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Articles 1 - 10 of 10
Full-Text Articles in Psychological Phenomena and Processes
Effect Of Response Bias On Threshold Estimates In Confounded N-Alternative Optional Choice Experiments, James J. Blaha, Benjamin T. Backus, Thaddeus B. Czuba
Effect Of Response Bias On Threshold Estimates In Confounded N-Alternative Optional Choice Experiments, James J. Blaha, Benjamin T. Backus, Thaddeus B. Czuba
MODVIS Workshop
Three modifications of the familiar 2-AFC task can be useful when collecting data to estimate sensory thresholds from unpracticed participants: (1) Make responding optional, which relieves the participant from having to guess when they are uncertain; (2) Provide N>2 alternatives, which reduces the number of trials to estimate threshold; and (3) Confound the alternatives with an independent variable, for example by having participants choose visual field locations as alternatives when measuring threshold separately at each visual field location, which reduces the number of trials through multiplexing. The N-alternative optional-choice experiment (N-AOC) and its confounded variant have not been studied …
The N-Alternative Optional Choice Experiment, Benjamin T. Backus, James J. Blaha, Thaddeus B. Czuba
The N-Alternative Optional Choice Experiment, Benjamin T. Backus, James J. Blaha, Thaddeus B. Czuba
MODVIS Workshop
When testing visual function in clinical settings, one encounters test-takers who have difficulty following a forced-choice instruction when stimulus intensity is low. “I didn’t see anything, why do I have to guess?” An optional-choice paradigm makes it easier for these test-takers to provide data. Here we describe a theory of signal detection for N-alternative optional-choice (N-AOC) psychophysical tasks. The theory generalizes two well-known paradigms into a single framework: the theory for yes-no tasks is a degenerate case in which N=1, and the theory for N-alternative forced choice tasks (N-AFC) is a degenerate case in which the decision criterion is liberal. …
The Influence Of Emotions And Limited Working Memory On Gambling, Haley Crouch
The Influence Of Emotions And Limited Working Memory On Gambling, Haley Crouch
The Journal of Purdue Undergraduate Research
No abstract provided.
Explaining The Staircase Gelb Illusion, Simultaneous Contrast, And Perceptual Fading Of Stabilized Images With A Neural Model Driven By Fixational Eye Movements, Michael E. Rudd
MODVIS Workshop
A neural model of lightness computation driven by fixational eye movements is described and used to simulate various lightness phenomenon, including the Staircase Gelb illusion and its variants, simultaneous contrast, the Chevreul illusion, and perceptual fading of stabilized images. The model provides a precise account of the lightness matches from several experiments, with an overall error of only 1.5%. In the model, spatial maps of transient ON and OFF cell activations—produced as the eyes traverse the visual scene—are sorted by eye movement direction in visual cortex. At a subsequent processing stage, the activations within these maps are summed across space …
Using Behavior Sequence Analysis To Study Teams During Long- Duration Isolation And Confinement, Andres Käosaar, Dr. Nathan Smith, Dr. David A. Keatley, Pranav Ambhorkar, Dr. Moritz Von Looz, Konstantinos Konstantinidis
Using Behavior Sequence Analysis To Study Teams During Long- Duration Isolation And Confinement, Andres Käosaar, Dr. Nathan Smith, Dr. David A. Keatley, Pranav Ambhorkar, Dr. Moritz Von Looz, Konstantinos Konstantinidis
Journal of Human Performance in Extreme Environments
With a renewed impetus and appetite for human space exploration, both government-funded agencies and private companies are focusing on longer and farther crewed missions into the solar system. Such space missions rely on highly interdependent teams living and working together in isolated, confined, and extreme (ICE) environments. Understanding the behavioral patterns of teams in ICE environments is, thus, paramount for the future success of such missions. Due to the complexity of studying ICE teams, several researchers have called for methodological innovations to advance knowledge in this area. In the current research, a proof-of-concept methodological approach is introduced that provides a …
Walking Your Brain To Better Ideas: The Effects Of An Acute Bout Of Exercise On Creativity, Alexis Swingendorf
Walking Your Brain To Better Ideas: The Effects Of An Acute Bout Of Exercise On Creativity, Alexis Swingendorf
The Journal of Purdue Undergraduate Research
No abstract provided.
Modeling Visual Enumeration Using Cumulative Link Regression., Anthony D. Cate Ph.D.
Modeling Visual Enumeration Using Cumulative Link Regression., Anthony D. Cate Ph.D.
MODVIS Workshop
Based on three core assumptions about mental representations of number, this model of visual enumeration specifies analysis methods that can identify when observers rely on different processes to estimate the numerosity of a visual display. Specifically, the model provides a clear criterion for identifying domains of numerosity that correspond to different perceptual or cognitive processes that have been described in numeracy literature, e.g. subitizing. The model predicts how the requirement to give integer responses in enumeration tasks can produce spurious discontinuities in accuracy measures that can be misidentified as evidence for a subitizing process. It is proposed that cumulative link …
Understanding Qualitative 3d Shape From Texture And Shading, Benjamin Kunsberg, Steven W. Zucker
Understanding Qualitative 3d Shape From Texture And Shading, Benjamin Kunsberg, Steven W. Zucker
MODVIS Workshop
No abstract provided.
Computational Modeling Of Contrast Sensitivity And Orientation Tuning In Schizophrenia, Steven M. Silverstein, Docia L. Demmin, James A. Bednar
Computational Modeling Of Contrast Sensitivity And Orientation Tuning In Schizophrenia, Steven M. Silverstein, Docia L. Demmin, James A. Bednar
MODVIS Workshop
Computational modeling is being increasingly used to understand schizophrenia, but, to date, it has not been used to account for the common perceptual disturbances in the disorder. We manipulated schizophrenia-relevant parameters in the GCAL (gain control, adaptation, laterally connected) model (Stevens et al., 2013), run using the Topographica simulator (Bednar, 2012), to model low-level visual processing changes in the disorder. Our models incorporated: separate sheets for retinal, LGN, and V1 activity; gain control in the LGN; homeostatic adaptation in V1 based on a weighted sum of all inputs and limited by a logistic (sigmoid) nonlinearity; lateral excitation and inhibition in …
How Burroughs Plays With The Brain, Or Ritornellos As A Means To Produce Déjà-Vu, Antonio José Bonome
How Burroughs Plays With The Brain, Or Ritornellos As A Means To Produce Déjà-Vu, Antonio José Bonome
CLCWeb: Comparative Literature and Culture
In his article "How Burroughs Plays with the Brain, or Ritornellos as a Means to Produce Déjà-Vu" Antonio José Bonome discusses how the recurrence and significance of one of William S. Burroughs's most potent refrains, "dim jerky faraway," was inspired by its source text, Paul Bowles's second novel Let It Come Down (1952), where Tangiers-Interzone fuels the unwholesome descent of a US-American expatriate not unlike Bowles or Burroughs himself. "Dim jerky faraway" was used by Burroughs during more than two decades in different contexts, and its textual variations have sparked a mélange of colors, sounds, smells, and feelings oscillating in …