Patternicity

Shermer, Michael

doi:10.1038/scientificamerican1208-48

Cited by 56 publications

(27 citation statements)

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“…This illusory motion was investigated by Rose & Blake previously, who termed the phenomenon the omega effect [10]. The omega effect is a classic example of paternicity, the tendency of the brain to find meaningful patterns in meaningless noise [11]. Two important results concerning this effect are reported in this paper.…”

Section: Introductionmentioning

confidence: 77%

Performance Characterization of Watson Ahumada Motion Detector Using Random Dot Rotary Motion Stimuli

Jain

2009

PLoS ONE

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The performance of Watson & Ahumada's model of human visual motion sensing is compared against human psychophysical performance. The stimulus consists of random dots undergoing rotary motion, displayed in a circular annulus. The model matches psychophysical observer performance with respect to most parameters. It is able to replicate some key psychophysical findings such as invariance of observer performance to dot density in the display, and decrease of observer performance with frame duration of the display.Associated with the concept of rotary motion is the notion of a center about which rotation occurs. One might think that for accurate estimation of rotary motion in the display, this center must be accurately known. A simple vector analysis reveals that this need not be the case. Numerical simulations confirm this result, and may explain the position invariance of MST(d) cells. Position invariance is the experimental finding that rotary motion sensitive cells are insensitive to where in their receptive field rotation occurs.When all the dots in the display are randomly drawn from a uniform distribution, illusory rotary motion is perceived. This case was investigated by Rose & Blake previously, who termed the illusory rotary motion the omega effect. Two important experimental findings are reported concerning this effect. First, although the display of random dots evokes perception of rotary motion, the direction of motion perceived does not depend on what dot pattern is shown. Second, the time interval between spontaneous flips in perceived direction is lognormally distributed (mode≈2 s). These findings suggest the omega effect fits in the category of a typical bistable illusion, and therefore the processes that give rise to this illusion may be the same processes that underlie much of other bistable phenomenon.

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Section: Introductionmentioning

confidence: 77%

Performance Characterization of Watson Ahumada Motion Detector Using Random Dot Rotary Motion Stimuli

Jain

2009

PLoS ONE

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“…Nonetheless, clinically, the named conditions remain relevant since their natural histories are distinguishable, if overlapping. We suspect that the DTDST family is really a smooth continuum, but has been segmented by the human tendency to see patterns even where none exist [Shermer, 2008]. Alternatively, it is possible that there are multiple thresholds of residual diastrophic dysplasia sulfate transporter activity that determine phenotype.…”

Section: Discussionmentioning

confidence: 99%

Genotype–phenotype correlation in DTDST dysplasias: Atelosteogenesis type II and diastrophic dysplasia variant in one family

Dwyer

Hyland

Modaff

et al. 2010

American J of Med Genetics Pt A

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Mutations in diastrophic dysplasia sulfate transporter (DTDST) cause a spectrum of autosomal recessive chondrodysplasias. In decreasing order of severity, they include processes designated as achondrogenesis type IB (ACG-1B), atelosteogenesis type II (AO2), diastrophic dysplasia (DTD), diastrophic dysplasia variant (DTDv), and recessively inherited multiple epiphyseal dysplasia (rMED). This is the first report of an extended family with unequivocally distinct phenotypes on the DTDST spectrum. Two siblings have DTDv and their first cousin had AO2. They all share the common Finnish mutation (IVS1 + 2C>T). The two patients with DTDv have the previously reported R279W extracellular domain missense mutation. The second mutation in the patient with AO2 is c.172delA, a deletion of one nucleotide causing a previously unreported frameshift mutation. This is the first published case of an individual with a frameshift mutation combined with the Finnish mutation. These three patients provide an opportunity, in concert with a review of previous literature, to further examine the genotype-phenotype correlation of DTDST. Analysis suggests that, while the DTDST family of disorders contains at least seven different conditions, mutations in the DTDST gene, in fact, appear to cause a phenotypic continuum. Furthermore, DTDST genotype alone is an imperfect predictor of clinical severity along this continuum.

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“…Det falder os naturligt at se ellers uforklarlige faenomener som resultater af intentionelle, måske usynlige vaeseners handlinger. Vores hjerne er konstant på udkig efter mønstre, mening og årsagssammenhaenge(Bubic, Cramon, og Schubotz 2010;Clark 2013;Shermer 2008), og det er derfor ikke så underligt at overtro i en vis grad overlever oplysning. Vi bad vores respondenter angive i hvilken grad de kunne erklaere…”

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Hvad tror danskerne på? En kortlægning af tro, overtro og overbevisning

Christensen

Clasen

2018

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Patternicity

Cited by 56 publications

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Performance Characterization of Watson Ahumada Motion Detector Using Random Dot Rotary Motion Stimuli

Performance Characterization of Watson Ahumada Motion Detector Using Random Dot Rotary Motion Stimuli

Genotype–phenotype correlation in DTDST dysplasias: Atelosteogenesis type II and diastrophic dysplasia variant in one family

Hvad tror danskerne på? En kortlægning af tro, overtro og overbevisning

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