The Automatic Processing of Threat: Preferential Attention Without Implicit Negative Valence

2008 ◽  
Author(s):  
Helena M. Purkis ◽  
Ottmar V. Lipp
2003 ◽  
Vol 17 (2) ◽  
pp. 61-68 ◽  
Author(s):  
Michal Kuniecki ◽  
Robert Barry ◽  
Jan Kaiser

Abstract The effect of stimulus valence was examined in the evoked cardiac response (ECR) elicited by the exposition of neutral and negative slides as well as by an innocuous auditory stimulus presented on the affective foregrounds generated by the slides. The exposition of the aversive slide produced prolonged cardiac deceleration in comparison with the neutral slide. Similar prolonged deceleration accompanied exposition of the neutral auditory stimulus on the negative visual foreground in comparison with the neutral foreground. We interpret these results as an autonomic correlate of extended stimulus processing associated with the affective stimulus. The initial deceleration response, covering two or three slower heart beats, may be prolonged for several seconds before HR reaches the baseline level again. In such a case the evoked cardiac deceleration can be functionally divided into two parts: the reflexive bradycardia (ECR1) elicited by neutral stimuli and a late decelerative component (LDC). We can speculate that the latter is associated with an additional voluntary continuation of processing of the stimulus. This must involve some cognitive aspect different from the mental task performance which leads to the accelerative ECR2, and we suggest that processing of a stimulus with negative valence is involved in generating the LDC.


2007 ◽  
Author(s):  
Karolina Czernecka ◽  
Michal Wierzchon ◽  
Dariusz Asanowicz

1992 ◽  
Author(s):  
Richard Shiffrin ◽  
Asher Cohen ◽  
Michael Fragassi
Keyword(s):  

Author(s):  
Ayşe I. Kural ◽  
Berrin Özyurt

Research has demonstrated consistently that personality and perceived stress, independently, are essential factors for university adjustment among university freshmen; however, little is known about the associations between personality, perceived stress, and adjustment together. Our primary goal was to explore the predictive utility of perceived stress for explaining university adjustment among university freshmen ( N = 290). We also tested the moderating role of personality traits and this research was embedded within a Big Five model of personality including the sixth trait for Turkish context, ‘Negative Valence’. Results addressed that only conscientiousness and negative valence moderated the perceived stress and adjustment association. Students high on negative valence and/or conscientiousness tended to experience the detrimental effect of perceived stress on university adjustment more due to their personality. These results suggested that personality might be an important factor to include in adjustment fostering interventions for freshmen at universities.


2021 ◽  
Vol 11 (11) ◽  
pp. 5288
Author(s):  
Manuel Henriques ◽  
Duarte Valério ◽  
Rui Melicio

Nowadays, satellite images are used in many applications, and their automatic processing is vital. Conventional integer grey-scale edge detection algorithms are often used for this. This study shows that the use of color-based, fractional order edge detection may enhance the results obtained using conventional techniques in satellite images. It also shows that it is possible to find a fixed set of parameters, allowing automatic detection while maintaining high performance.


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