Processing and Memory of Color, Contour, and Pattern Found in Computer Digitized Color Pictures for Elementary Children

1988 ◽  
Vol 4 (4) ◽  
pp. 403-412
Author(s):  
Douglas G. Marschalek

Children in grades one, three, and five participated in three experiments which examined the active processing and short-term memory (STM) of color, contour, and interior pattern of shapes found in computer digitized pictures. No age-related differences were found at the level of active processing and at the onset of STM (10 msec delay) for the three dimensions, while age-related differences occurred for color and contour information at a longer memory lag time (100 msec delay). The study provides insights to the role of processing and memory for specific types of information found in color pictures, which has implications for effecting higher order cognitive behaviors.

2010 ◽  
Author(s):  
Charlotte Froger ◽  
Badiaa Bouazzaoui ◽  
Laurence Taconnat

1968 ◽  
Vol 78 (3, Pt.1) ◽  
pp. 494-501 ◽  
Author(s):  
Calvin F. Nodine ◽  
James H. Korn

GIS Business ◽  
2019 ◽  
Vol 14 (6) ◽  
pp. 243-252
Author(s):  
Dr. M.A. Bilal Ahmed ◽  
Dr. S. Thameemul Ansari

SHG is a movement which came to being in the early 1969. Prof. Muhammed Younus, a great economist of Bangladesh took initiative in setting up Self Help Groups and these SHGs were gradually spread all over the world. This social movement unites the people hailing from poor background. Those who are joining this group feel socially and economically responsible to one another. In India, there are some likeminded bodies and stakeholders of some government organizations play pivotal role towards the formation of SHG In this research article, role of SHGs in Vellore district is studies under the three dimensions of Cognitive role, leadership role and role towards entrepreneurship.


2019 ◽  
Author(s):  
Majid Manoochehri

Memory span in humans has been intensely studied for more than a century. In spite of the critical role of memory span in our cognitive system, which intensifies the importance of fundamental determinants of its evolution, few studies have investigated it by taking an evolutionary approach. Overall, we know hardly anything about the evolution of memory components. In the present study, I briefly review the experimental studies of memory span in humans and non-human animals and shortly discuss some of the relevant evolutionary hypotheses.


2020 ◽  
Vol 17 ◽  
Author(s):  
Christina Karakosta ◽  
Argyrios Tzamalis ◽  
Michalis Aivaliotis ◽  
Ioannis Tsinopoulos

Background/Objective:: The aim of this systematic review is to identify all the available data on human lens proteomics with a critical role to age-related cataract formation in order to elucidate the physiopathology of the aging lens. Materials and Methods:: We searched on Medline and Cochrane databases. The search generated 328 manuscripts. We included nine original proteomic studies that investigated human cataractous lenses. Results:: Deamidation was the major age-related post-translational modification. There was a significant increase in the amount of αA-crystallin D-isoAsp58 present at all ages, while an increase in the extent of Trp oxidation was apparent in cataract lenses when compared to aged normal lenses. During aging, enzymes with oxidized cysteine at critical sites included GAPDH, glutathione synthase, aldehyde dehydrogenase, sorbitol dehydrogenase, and PARK7. Conclusion:: D-isoAsp in αA crystallin could be associated with the development of age-related cataract in human, by contributing to the denaturation of a crystallin, and decreasing its ability to act as a chaperone. Oxidation of Trp may be associated with nuclear cataract formation in human, while the role of oxidant stress in age-related cataract formation is dominant.


MicroRNA ◽  
2020 ◽  
Vol 09 ◽  
Author(s):  
Sadniman Rahman ◽  
Chaity Modak ◽  
Mousumi Akter ◽  
Mohammad Shamimul Alam

Background: Learning and memory is basic aspects in neurogenetics as most of the neurological disorders start with dementia or memory loss. Several genes associated with memory formation have been discovered. MicroRNA genes miR-1000 and miR-375 were reported to be associated with neural integration and glucose homeostasis in some insects and vertebrates. However, neuronal function of these genes is yet to be established in D. melanogaster. Objective: Possible role of miR-1000 and miR-375 in learning and memory formation in this fly has been explored in the present study. Methods: Both appetitive and aversive olfactory conditional learning were tested in the miR-1000 and miR-375 knockout (KO) strains and compared with wild one. Five days old third instar larvae were trained by allowing them to be associated with an odor with reward (fructose) or punishment (salt). Then, the larvae were tested to calculate their preferences to the odor trained with. Learning index (LI) values and larval locomotion speed were calculated for all strains. Results: No significant difference was observed for larval locomotion speed in mutant strains. Knockout strain of miR-1000 showed significant deficiency in both appetitive and aversive memory formation whereas miR-375 KO strain showed a significantly lower response only in appetitive one. Conclusion: The results of the present study indicate important role played by these two genes in forming short-term memory in D. melanogaster.


Author(s):  
Юлия Черткова ◽  
Yuliya Chertkova ◽  
Марина Егорова ◽  
Marina Yegorova

The paper reflects one of the aspects of the research carried out within the framework of the project “Nature of variability of negative personality traits: a twin study”. The research reviews the adaptive component of negative personal traits. The sample of the study consisted of 136 members of monozygotic twins and 401 only children in their families aged 18-78. Life satisfaction was a generalized metric of psychological adaptation. It is shown that a number of negative personality traits (in particular, narcissism, authoritarianism) positively correlate with life satisfaction. The biased value of various personality traits, which can also indirectly serve as an indicator of adaptability of these psychological properties, was assessed using a semantic differential. The age-related changes in the perfect image of the self, which are associated primarily with some more attractive negative personal traits, as well as the multidirectional desired changes in personality traits in themselves and the twin (more power and conflict in themselves and less of the same in the brother/sister) also indicate that a number of negative personal traits play a positive role in psychological adaptation. It is assumed that these traits can have a compensatory function during stress, and the destructiveness of these traits can have a greater impact on people around than on themselves.


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