scholarly journals Negative versus positive priming: When are distractors inhibited?

2017 ◽  
Vol 10 (2) ◽  
Author(s):  
Stefan Van der Stigchel
Keyword(s):  
Visual Search ◽  
Visual Attention ◽  
Negative Priming ◽  
Strong Inhibition ◽  
Positive Priming ◽  
Visual Priming ◽  
Intertrial Priming ◽  
Close Proximity ◽  
History Of ◽  
Strong Adaptation

Visual attention is guided by the history of selections in previous trials, an effect usually referred to as intertrial priming. The aim of the present study was to investigate whether such priming in visual search is due to a strengthening of the target signal, or the suppression of the distractor signal. In two experiments, we examined the deviation of saccade endpoints in situations in which the target and distractors were presented in relative close proximity. We found both negative and positive priming, irrespective of whether the repeating feature was relevant or irrelevant. This finding is in contrast to previous results with this paradigm, based on which we concluded that visual priming is strictly the result of boosting perceptual target signals. Based on the differences between these experiments, we conclude that the number of distractors is essential in observing negative priming. We propose that negative priming is solely observed when multiple distractors result in either strong inhibition of distractor features, or strong adaptation to them. Whereas positive priming seems to be a robust mechanism, negative priming is only present if there are multiple distractors. 

An ERP Investigation of Semantic Priming, Repetition Priming, and Negative Priming in Schizophrenic Patients

2006 ◽  
Vol 20 (3) ◽  
pp. 195-211 ◽  
Author(s):  
Michael Wagner ◽  
Lioba Baving ◽  
Patrick Berg ◽  
Rudolf Cohen ◽  
Brigitte Rockstroh
Keyword(s):  
Negative Priming ◽  
Repetition Priming ◽  
Event Related Potentials ◽  
Decision Task ◽  
Positive Priming ◽  
Retrieval Processes ◽  
Schizophrenic Patients ◽  
Related Potentials ◽  
Late Positive Complex ◽  
Automatic Memory

The processing of attended and nonattended stimuli in schizophrenic patients was examined with event-related potentials (ERPs) in a lexical decision task. In positive semantic and repetition priming the N400 amplitude did not differ between a group of 17 medicated schizophrenic patients and a group of 20 matched healthy controls. However, negative priming affected the N400 only in controls. Reaction time effects were dissociated from these ERP effects, with patients showing stronger positive priming than controls but identical negative priming. The semantic processes related to the N400 appear to be intact in schizophrenic patients, but patients seem to incorporate less context information (about the nonattended prime) in their episodic memory traces. A stronger increase of the posterior late positive complex in parallel to the stronger positive priming in schizophrenic patients may reflect relatively stronger automatic memory retrieval processes in patients.

Metal burial: Understanding caching behaviour and contact material culture in Australia's NE Kimberley

2021 ◽  
Vol 21 (1) ◽  
pp. 28-52
Author(s):  
Sam Harper ◽  
Ian Waina ◽  
Ambrose Chalarimeri ◽  
Sven Ouzman ◽  
Martin Porr ◽  
...  
Keyword(s):  
Material Culture ◽  
Cultural Practices ◽  
Raw Materials ◽  
Cross Cultural ◽  
Contact Material ◽  
Northern Australia ◽  
Assemblage Theory ◽  
Close Proximity ◽  
History Of ◽  
Human Burials

This paper explores identity and the recursive impacts of cross-cultural colonial encounters on individuals, cultural materials, and cultural practices in 20th-century northern Australia. We focus on an assemblage of cached metal objects and associated cultural materials that embody both Aboriginal tradition and innovation. These cultural materials were wrapped in paperbark and placed within a ring of stones, a bundling practice also seen in human burials in this region. This ‘cache' is located in close proximity to rockshelters with rich, superimposed Aboriginal rock art compositions. However, the cache shelter has no visible art, despite available wall space. The site shows the utilisation of metal objects as new raw materials that use traditional techniques to manufacture a ground edge metal axe and to sharpen metal rods into spears. We contextualise these objects and their hypothesised owner(s) within narratives of invasion/contact and the ensuing pastoral history of this region. Assemblage theory affords us an appropriate theoretical lens through which to bring people, places, objects, and time into conversation.

Peculiar Whiteness

2021 ◽  
Author(s):  
Justin Mellette
Keyword(s):  
Southern Literature ◽  
White Trash ◽  
Poor Whites ◽  
Thomas Dixon ◽  
Close Proximity ◽  
Disparate Treatment ◽  
History Of ◽  
Poor White ◽  
Key Issues ◽  
Fear And Anxiety

Peculiar Whiteness argues for deeper consideration of the complexities surrounding the disparate treatment of poor whites throughout southern literature and attests to how broad such experiences have been. While the history of prejudice against this group is not the same as the legacy of violence perpetrated against people of color in America, individuals regarded as ‘white trash’ have suffered a dehumanizing process in the writings of various white authors. Poor white characters are frequently maligned as grotesque and anxiety-inducing, especially when they are aligned in close proximity to blacks or with other troubling conditions such as physical difference. Thus, as a symbol, much has been asked of poor whites, and various iterations of the label (e.g., ‘white trash,’ tenant farmers, or even people with a little less money than average) have been subject to a broad spectrum of judgment, pity, compassion, fear, and anxiety. Peculiar Whiteness engages key issues in contemporary critical race studies, whiteness studies, and southern studies, both literary and historical. Through discussions of authors including Charles Chesnutt, Thomas Dixon, Erskine Caldwell, William Faulkner, and Flannery O’Connor, the book analyzes how we see how whites in a position of power work to maintain their status, often by finding ways to re-categorize and marginalize people who might not otherwise have seemed to fall under the auspices or boundaries of ‘white trash.’

scholarly journals Form, set organization and visual attention in illusory contours perception

Psihologija ◽  
2009 ◽  
Vol 42 (2) ◽  
pp. 239-254 ◽  
Author(s):  
Vasilije Gvozdenovic
Keyword(s):  
Visual Search ◽  
Visual Attention ◽  
Experimental Psychology ◽  
Illusory Contours ◽  
Target Figure ◽  
Simple Detection ◽  
The Way

Laboratory of Experimental Psychology, University of Belgrade The aim of the study was the investigation of form, spatial set organization and visual attention in visual search of illusory contours. Three visual search experiments were conducted. In the first experiment, where the simple detection procedure was used, subject's task was to detect square among vertical and horizontal lines. Other experiments investigated visual search of illusory contours in four different set organizations. Introduction of set organization was the way of manipulation of target's eccentricity among other elements. Analysis showed different type of search of the regular and the illusory square figure. The search profile of the regular square proved to be parallel, while all the searches of the illusory squares remained serial. Set organization had important role in visual search of illusory contours. Regardless of serial profile, visual search was faster in cases where target figure was more salient due to the background elements organization.

scholarly journals Visual attention in spatial cueing and visual search

2021 ◽  
Vol 21 (3) ◽  
pp. 1
Author(s):  
Jongsoo Baek ◽  
Barbara Anne Dosher ◽  
Zhong-Lin Lu
Keyword(s):  
Visual Search ◽  
Visual Attention ◽  
Spatial Cueing

scholarly journals Predictors of proximity to others in colony housed shelter cats (Felis silvestris catus)

2016 ◽  
pp. 24 ◽  
Author(s):  
Malini Suchak ◽  
Michael Piombino ◽  
Kalina Bracco
Keyword(s):  
Past History ◽  
Individual Variability ◽  
Felis Silvestris Catus ◽  
Future Studies ◽  
The Past ◽  
Close Proximity ◽  
History Of ◽  
Adult Cats ◽  
Stress Behaviors ◽  
High Degree

Colony housing of cats allows shelters to maximize the number of cats housed in limited space. Most research on colony-housed cats examines stress in relation to group size or enclosure size.  While this is important for evaluating welfare, it is equally important to understand how cats are interacting socially in these colonies. We observed 259 adult cats housed in groups of two to eight individuals. Scan samples were used to assess how frequently individual cats were in close proximity to other cats. These data were used to measure individual differences in sociability and patterns of proximity to certain partners. We used information about the past history of the cat, which was collected upon admission to the shelter to identify predictors of time spent in proximity. There was a high degree of inter-individual variability in sociability. Strays tended to spend less time in proximity to other cats, and this effect was most pronounced in females.However, none of the information collected upon admission predicted patterns of proximity to certain partners, or which cats spent time in association witheach other. Future studies should explore the implications of differences in sociability by associating observations of social behavior and stress behaviors.

The Shang burials at the Yangjiawan Locality of the Panlongcheng Site in Wuhan

2018 ◽  
Vol 18 (1) ◽  
pp. 81-88 ◽  
Keyword(s):  
Large Scale ◽  
Terminal Phase ◽  
Shang Dynasty ◽  
Wuhan City ◽  
Close Proximity ◽  
History Of ◽  
First Time ◽  
Grave Goods

Abstract In 2013, the Department of Archaeology, School of History of Wuhan University and the Panlongcheng City Ruins Museum excavated seven burials of the Shang Dynasty at Yangjiawan Locality within the Panlongcheng Site in Wuhan City. All the burials were vertical earthen shaft burials. Some of the burials featured waist pits, human and/or animal sacrifices. The grave goods assemblage included artifacts made of bronze, jade, stone, pottery, gold and turquoise. Some of the unearthed objects were seen for the first time in the archaeology of Panlongcheng. The burials can be roughly dated to the terminal phase of the Panlongcheng Site. The Yangjiawan Locality yielded the densest distribution of burials in the Panlongcheng Site. It was an important cemetery of the early to the mid Shang Dynasty. The cemetery was in close proximity to a previously excavated large-scale architectural foundation of the Shang Dynasty. Together, these findings are important information for the understanding of the layout of the Panlongcheng Site.

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