scholarly journals Characterising strategy use during the performance of hippocampal-dependent tasks

2019 ◽  
Author(s):  
Ian A. Clark ◽  
Anna M. Monk ◽  
Eleanor A. Maguire

ABSTRACTRecalling the past, thinking about the future and navigating in the world are linked with a brain structure called the hippocampus. Precisely how the hippocampus enables these critical cognitive functions is still debated. The strategies people use to perform tasks associated with these functions have been under-studied, and yet such information could augment our understanding of the associated cognitive processes and neural substrates. Here, we devised and deployed an in-depth protocol to examine the explicit strategies used by 217 participants to perform four naturalistic tasks widely acknowledged to be hippocampal-dependent, namely, those assessing scene imagination, autobiographical memory recall, future thinking and spatial navigation. In addition, we also investigated strategy use for three laboratory-based memory tasks, one of which is held to be hippocampal-dependent – concrete verbal paired associates – and two tasks which are likely hippocampal-independent – abstract verbal paired associates and the dead or alive semantic memory test. We found that scene visual imagery was the dominant strategy not only when mentally imagining scenes, but also during autobiographical memory recall, when thinking about the future and during navigation. Moreover, scene visual imagery strategies were used most frequently during the concrete verbal paired associates task, whereas verbal strategies were most prevalent for the abstract verbal paired associates task and the dead or alive semantic memory task. The ubiquity of specifically scene visual imagery use across a range of tasks may attest to its, perhaps underappreciated, importance in facilitating cognition, whilst also aligning with perspectives that emphasise a key role for the hippocampus in constructing scene imagery.

Crisis ◽  
2008 ◽  
Vol 29 (2) ◽  
pp. 64-72 ◽  
Author(s):  
Susan A. Rasmussen ◽  
Rory C. O’Connor ◽  
Dallas Brodie

The main objective of this study was to investigate the relationship between social perfectionism, overgeneral autobiographical memory recall, and psychological distress (hopelessness, depression/anxiety, and suicidal ideation) in a sample of parasuicide patients. Forty patients who had been admitted to a Scottish hospital following an episode of deliberate self-harm participated in the study. The participants completed the autobiographical memory task and a battery of self-report measures (multidimensional perfectionism, hopelessness, depression/anxiety, and suicidal ideation). The results showed that repetitive self-harmers were more overgeneral in their recall of positive autobiographical memories than were first-time self-harmers. Hierarchical regression analyses showed that socially prescribed perfectionism interacted with overgeneral recall of both positive and negative memories to predict suicidal ideation/depression. The findings are discussed in relation to previous research.


1971 ◽  
Vol 28 (3) ◽  
pp. 803-806 ◽  
Author(s):  
Edgar A. Chenoweth ◽  
Gerry L. Wilcove

A perceptual paired-associates task was presented in which pictures of objects and consonant-vowel-consonant trigrams served as stimulus and response members of the P-A unit, respectively. Introductory psychology students had been classified previously into encoding groups on the basis of their performance on a memory task. The prediction that the linguistic encoders would learn the PA task more slowly than the perceptual encoders was supported by the results.


Author(s):  
Chryssi Bourbou

The study of sub-adult remains, either skeletal or mummified, has been always a fairly neglected subject of bioarchaeology. Regarding mummified subadult remains, it mainly seems that fascinating stories (i.e., mountain sacrifice mummies) are usually discussed in detail. However, whilst childhood is a biological stage of human development, it is also a social construct and many past and present societies assign different values and meanings (i.e., cultural beliefs, social tensions) to the dead child. This presentation addresses the biocultural context of children mummies based on a meticulous survey of up-dated published reports. In addition, paleopathological observations are discussed, as well as the future need for systematic studies of subadult mummies (i.e., mortality patterns, maternal mortality).


2018 ◽  
Author(s):  
Caitlin Hitchcock ◽  
Ann-Marie J. Golden ◽  
Aliza Werner-Seidler ◽  
Willem Kuyken ◽  
Tim Dalgleish

2016 ◽  
Vol 22 (2) ◽  
Author(s):  
George Kouvaros

In his final unfinished book on the writing of history, Siegfried Kracauer wonders about his increasing susceptibility to ‘the speechless plea of the dead’. ‘[T]he older one grows, the more he is bound to realize that his future is the future of the past—history.’ For the children of migrants, the question of how to speak well of the dead is distinguished by complex feelings of attachment and rejection, identification and denial that are expressed in a range of everyday interactions. ‘The Old Greeks’ examines the part played by photographic media in this process of memorialisation. It elaborates a series of propositions about the value of photographic media that are tested through a consideration of the events that surrounded the author’s first years in Australia.


2008 ◽  
Vol 22 (1) ◽  
Author(s):  
I Dewa Made Pastika

The Art of sarcophagus has been known in Bali since ancient up to now in relationship with a cremation ceremony called “ Ngaben” or “ Pelebon”. Its function is as a plase for the dead body during cremation in order that the dead body is protected and its ash can be easily collected after the cremation Phylosophically, sarco- phagi whith are shape of animals have. a meaning of a pach into the heaven for the soul of the cremated body. Besides, if we view them from the art aspect, they hava special artistic velues and special beauty which become an important cultural asset to attract tourist who want to watch them. Ornaments of the sarcophagi generally used in Bali, are taken from animals such as lion, deer, akin of dragon, gedarba, tiger, and kinds of fish. The shaped sarcophagi are adorned with carved ornaments or with cutouts which are stuck on them and made from paper with various carving motif and coloured-catton thread for example: takep pala, takep piah, pengampad, badong, bottems cover ornament, fire tongue, “ gunala”, “karang guak”, “dure “. Ornaments carved in va- rious motif such as “patra punggel”, “patra sari”, mas-masan, “cra- cap”, patra cina “ and other “ kekarangan “. Comparison elements have important role on the beauty of sarcophagus work such as the comparison between the height and the length of the sarcophagus. Sarcophagi not only have special religious meaning, but olso they have high artistic value which should be developed in the future.


2013 ◽  
Vol 150 (1) ◽  
pp. 88-92 ◽  
Author(s):  
Jevita Potheegadoo ◽  
Fabrice Berna ◽  
Christine Cuervo-Lombard ◽  
Jean-Marie Danion

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