scholarly journals Automatic and Fast Encoding of Representational Uncertainty Underlies the Distortion of Relative Frequency

2021 ◽  
Vol 41 (16) ◽  
pp. 3692-3706
Author(s):  
Xiangjuan Ren ◽  
Huan Luo ◽  
Hang Zhang
Keyword(s):  
Relative Frequency ◽  
Fast Encoding

scholarly journals Automatic and fast encoding of representational uncertainty underlies probability distortion

2019 ◽  
Author(s):  
Xiangjuan Ren ◽  
Huan Luo ◽  
Hang Zhang
Keyword(s):  
Relative Frequency ◽  
Relative Strength ◽  
Perceptual Judgment ◽  
Neural Basis ◽  
Confidence Estimation ◽  
Fast Encoding ◽  
Wide Range ◽  
Probability Information ◽  
The Brain ◽  
Uncertainty Compensation

AbstractHumans do not have an accurate representation of probability information in the environment but distort it in a surprisingly stereotyped way (“probability distortion”), as shown in a wide range of judgment and decision-making tasks. Many theories hypothesize that humans automatically compensate for the uncertainty inherent in probability information (“representational uncertainty”) and probability distortion is a consequence of uncertainty compensation. Here we examined whether and how the representational uncertainty of probability is quantified in the human brain and its relevance to probability distortion behavior. Human subjects kept tracking the relative frequency of one color of dot in a sequence of dot arrays while their brain activity was recorded by magnetoencephalography (MEG). We found converging evidence from both neural entrainment and time-resolved decoding analysis that a mathematically- derived measure of representational uncertainty is automatically computed in the brain, despite it is not explicitly required by the task. In particular, the encodings of relative frequency and its representational uncertainty respectively occur at latencies of approximately 300 ms and 400 ms. The relative strength of the brain responses to these two quantities correlates with the probability distortion behavior. The automatic and fast encoding of the representational uncertainty provides neural basis for the uncertainty compensation hypothesis of probability distortion. More generally, since representational uncertainty is closely related to confidence estimation, our findings exemplify how confidence might emerge prior to perceptual judgment.

Relative Frequency Predicts Presence of Voice Disorders

ASHA Leader ◽  
2013 ◽  
Vol 18 (3) ◽  
pp. 31-31
Keyword(s):  
Relative Frequency ◽  
Voice Disorders

Relative Frequency Predicts Presence of Voice Disorders

How people judge the relative frequency of sequential events

2010 ◽  
Author(s):  
Midori Tokita ◽  
Akira Ishiguchi
Keyword(s):  
Relative Frequency

PERAN MASYARAKAT TERHADAP PEMBAYARAN RETRIBUSI SAMPAH DI KOTA SAMARINDA

2018 ◽  
Vol 2 (1) ◽  
pp. 33
Author(s):  
Abd Rachim AF,
Keyword(s):  
Waste Management ◽  
Population Growth ◽  
Frequency Analysis ◽  
Urban Areas ◽  
Relative Frequency ◽  
Environmental Problems ◽  
Living Standards ◽  
The Public ◽  
And Behavior

One of the environmental problems in urban areas is the pollution caused by garbage. The waste problem is caused by various factors such as population growth, living standards changes, lifestyles and behavior, as well as how the waste management system. This study aims to determine how the role of society to levy payments garbage in Samarinda. This research was descriptive; where the data is collected then compiled, described and analyzed used relative frequency analysis. The participation of the public to pay a "levy junk", which stated to pay 96.67%, for each month and the rates stated society cheap, moderate and fairly, respectively 46.08%, 21.21%, 21.04%. Base on the data , the role of the community to pay "levy junk" quite high.

Ameloblastic Fibroma Associated With Impacted 3rd Molar: A Case Report

2017 ◽  
Vol 1 (7) ◽  
pp. 18-21
Author(s):  
K Indira Priyadarshini ◽  
Karthik Raghupathy ◽  
K V Lokesh ◽  
B Venu Naidu
Keyword(s):  
Relative Frequency ◽  
Posterior Region ◽  
Radiographic Examination ◽  
Dental Eruption ◽  
Ameloblastic Fibroma ◽  
Odontogenic Origin ◽  
The Common ◽  
The Times ◽  
The Right ◽  
Slow Growing

Ameloblastic fibroma is an uncommon mixed neoplasm of odontogenic origin with a relative frequency between 1.5 – 4.5%. It can occur either in the mandible or maxilla, but predominantly seen in the posterior region of the mandible. It occurs in the first two decades of life. Most of the times it is associated with tooth enclosure, causing a delay in eruption or altering the dental eruption sequence. The common clinical manifestation is a slow growing painless swelling and is detected during routine radiographic examination. There is controversy in the mode of treatment, whether conservative or aggressive. Here we reported a 38 year old male patient referred for evaluation of painless swelling on the right posterior region of the mandible associated with clinically missing 3rd molar. The lesion was completely enucleated under general anesthesia along with the extraction of impacted molar.

Comparing Representation of Depression on Reddit and Twitter Social Media Platforms (Preprint)

2020 ◽  
Author(s):  
Ethan Kaji ◽  
Maggie Bushman
Keyword(s):  
Mental Health ◽  
Social Media ◽  
Content Analysis ◽  
Relative Frequency ◽  
Social Activity ◽  
Social Media Platforms ◽  
Dsm Iv ◽  
Twitter Users

BACKGROUND Adolescents with depression often turn to social media to express their feelings, for support, and for educational purposes. Little is known about how Reddit, a forum-based platform, compares to Twitter, a newsfeed platform, when it comes to content surrounding depression. OBJECTIVE The purpose of this study is to identify differences between Reddit and Twitter concerning how depression is discussed and represented online. METHODS A content analysis of Reddit posts and Twitter posts, using r/depression and #depression, identified signs of depression using the DSM-IV criteria. Other youth-related topics, including School, Family, and Social Activity, and the presence of medical or promotional content were also coded for. Relative frequency of each code was then compared between platforms as well as the average DSM-IV score for each platform. RESULTS A total of 102 posts were included in this study, with 53 Reddit posts and 49 Twitter posts. Findings suggest that Reddit has more content with signs of depression with 92% than Twitter with 24%. 28.3% of Reddit posts included medical content compared to Twitter with 18.4%. 53.1% of Twitter posts had promotional content while Reddit posts didn’t contain promotional content. CONCLUSIONS Users with depression seem more willing to discuss their mental health on the subreddit r/depression than on Twitter. Twitter users also use #depression with a wider variety of topics, not all of which actually involve a case of depression.

Deceptive Ambiguity by Police and Prosecutors

2017 ◽  
Author(s):  
Roger W. Shuy
Keyword(s):  
Speech Acts ◽  
Relative Frequency ◽  
The Other ◽  
Cooperative Principle ◽  
Case Examples ◽  
Police Interviews ◽  
Performance Errors ◽  
Criminal Suspects ◽  
The Government ◽  
Speech Events

Much is written about how criminal suspects, defendants, and undercover targets use ambiguous language in their interactions with police, prosecutors, and undercover agents. This book examines the other side of the coin, describing fifteen criminal investigations demonstrating how police, prosecutors, undercover agents, and complainants use deceptive ambiguity with their subjects, which leads to misrepresentations of the speech events, schemas, agendas, speech acts, lexicon, and grammar. These misrepresentations affect the perceptions of judges and juries about the subjects’ motives, predispositions, intentions, and voluntariness. Deception is commonly considered intentional while ambiguity is often excused as unintentional performance errors. Although perhaps overreliance on Grice’s maxim of sincerity leads some to believe this, interactions of suspects, defendants, and targets with representatives of law are adversarial, non-cooperative events that enable participants to ignore or violate the cooperative principle. One effective way the government does this is to use ambiguity deceptively. Later listeners to the recordings of such conversations may not recognize this ambiguity and react in ways that the subjects may not have intended. Deceptive ambiguity is clearly intentional in undercover operations and the case examples illustrate that the practice also is alive and well in police interviews and prosecutorial questioning. The book concludes with a summary of how the deceptive ambiguity used by representatives of the government affected the perception of the subjects’ predisposition, intentionality and voluntariness, followed by a comparison of the relative frequency of deceptive ambiguity used by the government in its representations of speech events, schemas, agendas, speech acts, lexicon, and grammar.

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