scholarly journals Distinctiveness effect due to contextual information in a categorization task

2010 ◽  
Author(s):  
Ali Oker ◽  
Rémy Versace
Keyword(s):  
Contextual Information ◽  
Categorization Task ◽  
Distinctiveness Effect

scholarly journals Motor Inhibition to Dangerous Objects: Electrophysiological Evidence for Task-dependent Aversive Affordances

2021 ◽  
Vol 33 (5) ◽  
pp. 826-839
Author(s):  
Magda Mustile ◽  
Flora Giocondo ◽  
Daniele Caligiore ◽  
Anna M. Borghi ◽  
Dimitrios Kourtis
Keyword(s):  
Contextual Information ◽  
Neural Mechanism ◽  
Judgment Task ◽  
Motor Inhibition ◽  
Inhibitory Mechanism ◽  
Categorization Task ◽  
Dangerous Object ◽  
Extrapersonal Space ◽  
Behavioral Studies ◽  
Grasping And Manipulation

Abstract Previous work suggests that perception of an object automatically facilitates actions related to object grasping and manipulation. Recently, the notion of automaticity has been challenged by behavioral studies suggesting that dangerous objects elicit aversive affordances that interfere with encoding of an object's motor properties; however, related EEG studies have provided little support for these claims. We sought EEG evidence that would support the operation of an inhibitory mechanism that interferes with the motor encoding of dangerous objects, and we investigated whether such mechanism would be modulated by the perceived distance of an object and the goal of a given task. EEGs were recorded by 24 participants who passively perceived dangerous and neutral objects in their peripersonal, boundary, or extrapersonal space and performed either a reachability judgment task or a categorization task. Our results showed that greater attention, reflected in the visual P1 potential, was drawn by dangerous and reachable objects. Crucially, a frontal N2 potential, associated with motor inhibition, was larger for dangerous objects only when participants performed a reachability judgment task. Furthermore, a larger parietal P3b potential for dangerous objects indicated the greater difficulty in linking a dangerous object to the appropriate response, especially when it was located in the participants' extrapersonal space. Taken together, our results show that perception of dangerous objects elicits aversive affordances in a task-dependent way and provides evidence for the operation of a neural mechanism that does not code affordances of dangerous objects automatically, but rather on the basis of contextual information.

The neural correlates of concreteness and ambiguity in a semantic categorization task

2006 ◽  
Author(s):  
Penny M. Pexman ◽  
Jodi D. Edwards ◽  
Ian S. Hargreaves ◽  
Luke C. Henry ◽  
Bradley Goodyear
Keyword(s):  
Neural Correlates ◽  
Categorization Task ◽  
Semantic Categorization

Monkeys show recognition, but not priming, in a categorization task

2010 ◽  
Author(s):  
Benjamin M. Basile ◽  
Robert R. Hampton
Keyword(s):  
Categorization Task

A Medieval Burial from Graham Street, Leith, Edinburgh

2003 ◽  
Vol 25 (2) ◽  
pp. 165-169
Author(s):  
Paul R. J. Duffy ◽  
Olivia Lelong
Keyword(s):  
Contextual Information ◽  
Human Remains ◽  
Housing Development ◽  
Archaeological Research ◽  
Archaeological Excavation ◽  
Radiocarbon Dates ◽  
Physical Evidence ◽  
Research Division ◽  
The North ◽  
The Individual

Summary An archaeological excavation was carried out at Graham Street, Leith, Edinburgh by Glasgow University Archaeological Research Division (GUARD) as part of the Historic Scotland Human Remains Call-off Contract following the discovery of human remains during machine excavation of a foundation trench for a new housing development. Excavation demonstrated that the burial was that of a young adult male who had been interred in a supine position with his head orientated towards the north. Radiocarbon dates obtained from a right tibia suggest the individual died between the 15th and 17th centuries AD. Little contextual information exists in documentary or cartographic sources to supplement this scant physical evidence. Accordingly, it is difficult to further refine the context of burial, although a possible link with a historically attested siege or a plague cannot be discounted.

PRIMING AND THE PREDICTABILITY OF CONTEXTUAL INFORMATION

2004 ◽  
Vol 99 (7) ◽  
pp. 1075
Author(s):  
MAURA PILOTTI
Keyword(s):  
Contextual Information

"He seems odd": The effects of risk-irrelevant information and actuarial risk estimates on mock jurors' perceptions of sexual recidivism risk

2020 ◽  
Author(s):  
Jennifer Kamorowski ◽  
Karl Ask ◽  
Maartje Schreuder ◽  
Marko Jelicic ◽  
Corine de Ruiter
Keyword(s):  
Contextual Information ◽  
Individual Characteristics ◽  
Risk Estimate ◽  
Case Vignette ◽  
Future Research ◽  
Sexual Recidivism ◽  
Mock Jurors ◽  
Related Factors ◽  
Risk Estimates ◽  
Actuarial Risk

Previous research has shown that mock and actual jurors give little weight to actuarial sexual offending recidivism risk estimates when making decisions regarding civil commitment for so-called sexually violent predators (SVPs). We hypothesized that non-risk related factors, such as irrelevant contextual information and jurors’ information-processing style, would influence mock jurors’ perceptions of sexual recidivism risk. This preregistered experimental study examined the effects of mock jurors’ (N = 427) need for cognition (NFC), irrelevant contextual information in the form of the offender’s social attractiveness, and an actuarial risk estimate on mock jurors’ estimates of sexual recidivism risk related to a simulated SVP case vignette. Mock jurors exposed to negative risk-irrelevant characteristics of the offender estimated sexual recidivism risk as higher than mock jurors exposed to positive information about the offender. However, this effect was no longer significant after mock jurors had reviewed Static-99R actuarial risk estimate information. We found no support for the hypothesis that the level of NFC moderates the relationship between risk-irrelevant contextual information and risk estimates. Future research could explore additional individual characteristics or attitudes among mock jurors that may influence perceptions of sexual recidivism risk and insensitivity to actuarial risk estimates.

Minimizing Bias in Forensic Handwriting Examinations

2015 ◽  
Vol 25 ◽  
pp. 17-26 ◽  
Author(s):  
L. C. Alewijnse ◽  
E.J.A.T. Mattijssen ◽  
R.D. Stoel
Keyword(s):  
Decision Making ◽  
Information Management ◽  
Contextual Information ◽  
Context Information ◽  
Decision Making Process ◽  
Potential Bias ◽  
Potential Influence ◽  
Management Procedures

The purpose of this paper is to contribute to the increasing awareness about the potential bias on the interpretation and conclusions of forensic handwriting examiners (FHEs) by contextual information. We briefly provide the reader with an overview of relevant types of bias, the difficulties associated with studying bias, the sources of bias and their potential influence on the decision making process in casework, and solutions to minimize bias in casework. We propose that the limitations of published studies on bias need to be recognized and that their conclusions must be interpreted with care. Instead of discussing whether bias is an issue in casework, the forensic handwriting community should actually focus on how bias can be minimized in practice. As some authors have already shown (e.g., Found & Ganas, 2014), it is relatively easy to implement context information management procedures in practice. By introducing appropriate procedures to minimize bias, not only forensic handwriting examination will be improved, it will also increase the acceptability of the provided evidence during court hearings. Purchase Article - $10

Multi-level 3D Densenets for False-positive Reduction in Lung Nodule Detection Based on Chest Computed Tomography

2020 ◽  
Vol 16 (8) ◽  
pp. 1004-1021
Author(s):  
Xiaoqi Lu ◽  
Yu Gu ◽  
Lidong Yang ◽  
Baohua Zhang ◽  
Ying Zhao ◽  
...  
Keyword(s):  
False Positive ◽  
Contextual Information ◽  
Lung Nodule ◽  
Positive Sample ◽  
Lung Nodules ◽  
Lung Nodule Detection ◽  
Nodule Detection ◽  
Level Information ◽  
Multi Level ◽  
Cade System

Objective: False-positive nodule reduction is a crucial part of a computer-aided detection (CADe) system, which assists radiologists in accurate lung nodule detection. In this research, a novel scheme using multi-level 3D DenseNet framework is proposed to implement false-positive nodule reduction task. Methods: Multi-level 3D DenseNet models were extended to differentiate lung nodules from falsepositive nodules. First, different models were fed with 3D cubes with different sizes for encoding multi-level contextual information to meet the challenges of the large variations of lung nodules. In addition, image rotation and flipping were utilized to upsample positive samples which consisted of a positive sample set. Furthermore, the 3D DenseNets were designed to keep low-level information of nodules, as densely connected structures in DenseNet can reuse features of lung nodules and then boost feature propagation. Finally, the optimal weighted linear combination of all model scores obtained the best classification result in this research. Results: The proposed method was evaluated with LUNA16 dataset which contained 888 thin-slice CT scans. The performance was validated via 10-fold cross-validation. Both the Free-response Receiver Operating Characteristic (FROC) curve and the Competition Performance Metric (CPM) score show that the proposed scheme can achieve a satisfactory detection performance in the falsepositive reduction track of the LUNA16 challenge. Conclusion: The result shows that the proposed scheme can be significant for false-positive nodule reduction task.

Fortunae in Italy

2018 ◽  
Author(s):  
Daniele Miano
Keyword(s):  
Contextual Information ◽  
First Century ◽  
Latin Language ◽  
City Walls

This chapter analyses the cults of Fortuna through Italy up to the first century BC. Although the evidence for the cults is mostly fragmentary, contextual information shows that diverse meanings were attached to Fortuna by a variety of agents. Latium and Campania are the regions where most of the cults are attested, and the diffusion of the deity seems to have followed that of the Latin language. There are certain recurring features common to many local cults and sanctuaries, e.g. a tendency to worship Fortuna near liminal places, with sanctuaries attested at the border of different territories and near city walls.

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