Memory

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dubna 10, 2026

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dubna 10, 2026

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"Working memory is a fundamental aspect of executive cognition that is thought to encompass three primary mental processes: 1) the access of information, 2) “on-line” operation(s) on this information, and 3) the production of a motor output response based on these operations (Goldman-Rakic, 1987). At present, several distinct theoretical conceptualizations of working memory exist within the cognitive science literature (reviewed in Kimberg, D’Esposito, & Farah, 1998). This lack of consensus may be due, in part, to the functional complexity of working memory, which includes aspects of rehearsal, maintenance, short term storage, attention, and executive control (Kimberg, et al., 1998). Working memory is widely accepted as being dependent on the lateral frontal cortex (Fuster, 1997; Goldman-Rakic, 1987; Owen, et al., 1998; 1999; Owen, 2000), and plays an important role in the temporal coordination of guided behavior via the perception-action cycle (Fuster, 2000). Immediate serial recall and memory span tasks are two common tools used to assess working memory in humans (Baddeley, 1996). In such tasks, the participant is presented with a series of stimuli, and required to recall this stimulus string in sequential order (Baddeley, 1996). In these tasks, the likelihood of correct recall is directly related to the length of the stimulus string, and by manipulating the length of this string, the participant’s working memory capacity (memory span) can be assessed (Baddeley, 1996)."

- Memory

• 0 likes• mental-processes•
"In the practical use of our intellect, forgetting is as important a function as recollecting. ... If we remembered everything, we should on most occasions be as ill off as if we remembered nothing. It would take as long for us to recall a space of time as it took the original time to elapse, and we should never get ahead with our thinking. All recollected times undergo, accordingly, what M. Ribot calls foreshortening; and this foreshortening is due to the omission of an enormous number of the facts which filled them. ... A thing forgotten on one day will be remembered on the next. Something we have made the most strenuous efforts to recall, but all in vain, will, soon after... saunter into the mind... [T]he sphere of possible recollection may be wider than we think, and... apparent oblivion is no proof against possible recall under other conditions. ... [M]ost of what happens actually is forgotten. ... When memory begins to decay, proper names are what go first ...[[wikt:common#Adjective|[C]ommon]] qualities and names have contracted an infinitely greater number of associations ...than the names of most of the persons ...Their memory is better organized. ...'Organization' means numerous associations; and the more numerous the associations, the greater the number of paths of recall. For the same reason... words... which form the grammatical framework of all our speech, are the very last to decay. ... We have ...as M. Ribot says, not memory so much as memories. The visual... tactile... muscular... auditory memory may all vary independently... and different individuals may have them developed in different degrees. As a rule, a man’s memory is good in the departments in which his interest is strong; but those departments are apt to be those in which his discriminative sensibility is high. ...[D]ifferences in men’s imagining power... the machinery of memory must be largely determined thereby. ... Mr. Galton ...in his English Men of Science, has given ...cases showing individual variations in the type of memory... Some have it verbal. Others... for facts and figures, others for form. Most say... [it] must first be rationally conceived and assimilated. ... Setting the mind to remember... involves a continual minimal irradiation of excitement into paths which lead thereto... the continued presence of the thing in the 'fringe' of our consciousness. Letting the thing go involves withdrawal of the irradiation, unconsciousness of the thing, and... obliteration of the paths. ... [T]hings are impressed better by active than by passive repetition. ...[I]t pays better to wait and recollect by an effort from within, than to look at the book again."

- Memory

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"What happens when people witness an event, say, a crime or accident, and are later exposed to new information about the event? Two decades of research have been devoted to the influence of new information on the recollections of such witnesses. An all-too-common finding is that after receipt of new information that is misleading in some way, people make errors when they report what they saw. New, post-event information often becomes incorporated into a recollection, supplementing or altering it, sometimes in dramatic ways. New information invades us, like a Trojan horse, precisely because we do not detect its influence. Understanding how we become tricked by revised data about a witnessed event is a central goal of this research. Current research showing how memory can become skewed when people assimilate new data utilizes a simple paradigm. Participants first witness a complex event, such as a simulated violent crime or automobile accident. Subsequently, half the participants receive new, misleading information about the event. The other half do not get any misinformation. Finally, all participants attempt to recall the original event. In a typical example of a study using this paradigm, participants saw a simulated traffic accident. They then received written information about the accident, but some people were misled about what they saw. A stop sign, for instance, was referred to as a yield sign. When asked whether they originally saw a stop or a yield sign, participants given the phony information tended to adopt it as their memory; they said they saw a yield sign. In these and many other experiments, people who had not received the phony information had much more accurate memories. In some experiments, the deficits in memory performance following receipt of misinformation have been dramatic, with performance differences as large as 30% or 40%."

- Memory

• 0 likes• mental-processes•