scholarly journals Evidence against a short-term-store account of long-term recency effects

1993 ◽  
Vol 21 (3) ◽  
pp. 329-337 ◽  
Author(s):  
Anjali Thapar ◽  
Robert L. Greene
Keyword(s):  

2020 ◽  
Author(s):  
David Bestue ◽  
Luis M. Martínez ◽  
Alex Gomez-Marin ◽  
Jordi Camí

How episodic memories decay is an unresolved question in cognitive neuroscience. The role of short-term mechanisms regarding the decay of episodic memories is circumscribed to set the maximum recall from which a monotonic decay occurs. However, this sequential view from the short to the long-term is not compulsory, as short-term dependent memory gains (like recency effects when memorizing a list of elements; serial-position effects) may not be translated into long-term memory differences. Moreover, producing memorable events in the laboratory faces important challenges, such as recreating realistic conditions with elevated recall, or avoiding spontaneous retrievals during memory retention (sociocultural hooks). Here we propose the use of magic to enhance the study of memory. We designed a sequence of magic tricks performed live on stage to evaluate the interaction between memory decay and serial-position effects of those tricks. The audience was asked to freely recall the tricks at four different timepoints: just after the show, 10 days, 1.5 months and 4.5 months. We discovered serial-position differences after the show that were no longer present later on, suggesting that short-term memory gains do not translate into the long-term. Illustrating the power of naturalistic stimuli to study long-term memory while interrogating the interaction between short-term and long-term mechanisms, this work is, to our knowledge, the first scientific study of the memorability of magic tricks.



1989 ◽  
Vol 64 (3) ◽  
pp. 803-808
Author(s):  
Koichi Sato

The effect of recall order on long-term recency effects in the continuous-distractor paradigm was investigated. Each list contained a series of pairs, each of a word and a number. In a recall session, subjects were given the numbers as probes and recalled the words paired with the numbers. Long-term recency effects were largely reduced when subjects recalled words from the primacy portion prior to other words, as in the case of short-term recency effects observed in the immediate-recall paradigm. These results suggest that the same mechanisms underlie the short-term and the long-term recency effects.



1993 ◽  
Vol 76 (3_suppl) ◽  
pp. 1107-1120 ◽  
Author(s):  
Koichi Sato

Long-term recency effects observed in the continuous distractor paradigm are often taken as evidence against the short-term store account of recency effects. In the present study, three experiments examined the function of time-sharing process in the continuous distractor paradigm. In the first two experiments, the effect of distractor difficulty on long-term recency was investigated with easy and hard distractor tasks. Distractor difficulty was manipulated in the recency portion and in the retention interval of a nine-word list and a hard distractor task eliminated long-term recency effects. In Exp. 3, distractor difficulty was manipulated across the first and the second halves of the retention interval. Long-term recency effects were larger if the first half of the retention interval contained an easy distractor task and the second half a hard task than if the order was hard-easy. These results indicate that subjects maintain recent items in short-term store and then transfer them to a long-term store by the time-sharing process during a distraction period. Long-term recency effects to a large extent depend on this time-sharing process.



1990 ◽  
Vol 71 (1) ◽  
pp. 259-266 ◽  
Author(s):  
Koichi Sato

Temporal retrieval theory argues that both short-term and long-term recency effects reflect the distinctiveness of position/order information of recent items. The present study tested this proposal in both the standard immediate free-recall paradigm and the continuous-distractor paradigm. Serial-position curves of item information learned intentionally were compared to those of position/order information learned incidentally. In the immediate condition, similar recency effects were observed for item and position/order information; the correlation of item recency with position/order recency was significant. In the continuous-distractor condition, although significant recency effects were observed for item and position/order information, the correlation between them was low. These results suggest that the distinctiveness of position/order information contributes to short-term recency effects but not to long-term recency effects.



Cortex ◽  
1991 ◽  
Vol 27 (2) ◽  
pp. 323-326 ◽  
Author(s):  
Giuseppe Vallar ◽  
Costanza Papagno ◽  
Alan D. Baddeley


2020 ◽  
Author(s):  
David Bestue ◽  
Luis M. Martinez ◽  
Alex Gomez-Marin ◽  
Miguel A. Gea ◽  
Jordi Camí

How episodic memories decay is an unresolved question in cognitive neuroscience. The role of short-term mechanisms regarding the decay of episodic memories is circumscribed to set the maximum recall from which a monotonic decay occurs. However, this sequential view from the short to the long-term is not compulsory, as short-term dependent memory gains (like recency effects when memorizing a list of elements; serial-position effects) may not be translated into long-term memory differences. Moreover, producing memorable events in the laboratory faces important challenges, such as recreating realistic conditions with elevated recall, or avoiding spontaneous retrievals during memory retention (sociocultural hooks). Here we propose the use of magic to enhance the study of memory. We designed a sequence of magic tricks performed live on stage to evaluate the interaction between memory decay and serial-position effects of those tricks. The audience was asked to freely recall the tricks at four different timepoints: just after the show, 10 days, 1.5 months and 4.5 months. We discovered serial-position differences after the show that were no longer present later on, suggesting that short-term memory gains do not translate into the long-term. Illustrating the power of naturalistic stimuli to study long-term memory while interrogating the interaction between short-term and long-term mechanisms, this work is, to our knowledge, the first scientific study of the memorability of magic tricks.



2016 ◽  
Vol 39 ◽  
Author(s):  
Mary C. Potter

AbstractRapid serial visual presentation (RSVP) of words or pictured scenes provides evidence for a large-capacity conceptual short-term memory (CSTM) that momentarily provides rich associated material from long-term memory, permitting rapid chunking (Potter 1993; 2009; 2012). In perception of scenes as well as language comprehension, we make use of knowledge that briefly exceeds the supposed limits of working memory.



Author(s):  
D.E. Loudy ◽  
J. Sprinkle-Cavallo ◽  
J.T. Yarrington ◽  
F.Y. Thompson ◽  
J.P. Gibson

Previous short term toxicological studies of one to two weeks duration have demonstrated that MDL 19,660 (5-(4-chlorophenyl)-2,4-dihydro-2,4-dimethyl-3Hl, 2,4-triazole-3-thione), an antidepressant drug, causes a dose-related thrombocytopenia in dogs. Platelet counts started to decline after two days of dosing with 30 mg/kg/day and continued to decrease to their lowest levels by 5-7 days. The loss in platelets was primarily of the small discoid subpopulation. In vitro studies have also indicated that MDL 19,660: does not spontaneously aggregate canine platelets and has moderate antiaggregating properties by inhibiting ADP-induced aggregation. The objectives of the present investigation of MDL 19,660 were to evaluate ultrastructurally long term effects on platelet internal architecture and changes in subpopulations of platelets and megakaryocytes.Nine male and nine female beagle dogs were divided equally into three groups and were administered orally 0, 15, or 30 mg/kg/day of MDL 19,660 for three months. Compared to a control platelet range of 353,000- 452,000/μl, a doserelated thrombocytopenia reached a maximum severity of an average of 135,000/μl for the 15 mg/kg/day dogs after two weeks and 81,000/μl for the 30 mg/kg/day dogs after one week.



2020 ◽  
Vol 29 (4) ◽  
pp. 710-727
Author(s):  
Beula M. Magimairaj ◽  
Naveen K. Nagaraj ◽  
Alexander V. Sergeev ◽  
Natalie J. Benafield

Objectives School-age children with and without parent-reported listening difficulties (LiD) were compared on auditory processing, language, memory, and attention abilities. The objective was to extend what is known so far in the literature about children with LiD by using multiple measures and selective novel measures across the above areas. Design Twenty-six children who were reported by their parents as having LiD and 26 age-matched typically developing children completed clinical tests of auditory processing and multiple measures of language, attention, and memory. All children had normal-range pure-tone hearing thresholds bilaterally. Group differences were examined. Results In addition to significantly poorer speech-perception-in-noise scores, children with LiD had reduced speed and accuracy of word retrieval from long-term memory, poorer short-term memory, sentence recall, and inferencing ability. Statistically significant group differences were of moderate effect size; however, standard test scores of children with LiD were not clinically poor. No statistically significant group differences were observed in attention, working memory capacity, vocabulary, and nonverbal IQ. Conclusions Mild signal-to-noise ratio loss, as reflected by the group mean of children with LiD, supported the children's functional listening problems. In addition, children's relative weakness in select areas of language performance, short-term memory, and long-term memory lexical retrieval speed and accuracy added to previous research on evidence-based areas that need to be evaluated in children with LiD who almost always have heterogenous profiles. Importantly, the functional difficulties faced by children with LiD in relation to their test results indicated, to some extent, that commonly used assessments may not be adequately capturing the children's listening challenges. Supplemental Material https://doi.org/10.23641/asha.12808607



1995 ◽  
Vol 28 (1) ◽  
pp. 121-140 ◽  
Author(s):  
Anthony J. Maniglia ◽  
Wen H. Ko ◽  
Mary Rosenbaum ◽  
Ted Falk ◽  
Wei-Lin Zhu ◽  
...  


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