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Individuals with-Mild Cognitive Impairment (MCI) often complain of difficulty remembering to carry out intended actions. We investigated the relative efficacy of a different reminder in performing a time-based Prospective Memory (PM) task. The PM performance of 24 participants with amnesic Mild Cognitive Impairment (AMCI) has been compared with that of 24 healthy controls. As ongoing task, samples of the Attentive Matrices Test were used. In the PM task subjects were requested to write an “X” every three minutes during a 9 minutes period. Participants received the task consisting either in a low demand condition (checking number “5”) or in a high demand condition (checking numbers “1”, “4”, “9”). In order to be as punctual as possible, participants were asked to simultaneously write the “X” at task time expiration, using a digital clock. Time monitoring was recorded. Reminder occurring was manipulated in that participants could receive critical, accidental or completely absent reminder. As expected, high cognitive demand was negatively correlated with PM performance and time monitoring. Unexpectedly, all the participants did not benefit from the critical reminder. These findings demonstrated, from a behavioral perspective, that Working Memory (WM) and PM processes are not based on the same memory system and PM may require WM resources at high demand.
Four shape memory alloys of Cu-Zn-Ni, in the range of 35-55 wt% of Cu, 43-60 wt% Zn and 2-9 wt% Ni, were prepared by ingot metallurgy route in an induction furnace under an inert atmosphere. The shape memory effect was tested by bend test. The alloys were further tested for its corrosion behavior in fresh water, Hank’s solution and sea water. From the results it was observed that the alloys exhibit high corrosion resistance in fresh water when compared to Hank’s solution and sea water. And it was also observed that the alloys exhibit better corrosion resistance in Hank’s solution than in sea water.
The goal of this study was to examine potential deficits in working memory capacity for college students that had a diagnosis of ADHD. College students with ADHD may be a particularly vulnerable group of individuals, given that success on academic work required focus and working memory for a variety of problem solving activities. Performance on these assessments involved controlled processing with simultaneous memory load. Both verbal and visual complex span tasks were used to assess working memory. Additionally, students were all administered with the Brown ADD scale in order to examine self-reported issues with distractibility. Results revealed that ADHD students performed significantly lower on the verbal complex span measure of working memory. No differences in reported inattentiveness were found. Findings were discussed in context of varying task demands in working memory and executive function measures.
There are only limited things that human
brain can process at the same time, and people are adapted to save mental resources
for things that are more important. Earlier research has shown that heuristics
is employed to lighten brain load when people have to make quick decisions. However,
it is not clear whether people will make rational choices if they have plenty
of time. The purpose of this study is to investigate whether mental resources more
or less will affect consumer behavior. In the experiment feeling/thinking
(intuition vs. rational), working memory load (numbers memorization), will be
employed to understand participants’ changing behaviors.