138 research outputs found
Letter from Thos. J. Henley to G. W. Manypenny, 1854
No full textEnclosed an extract from Redick McKee relative to the amount due to him for services as Indian Agent in the Nevada district, as well as an extract of instructions from E. F. Beale to McKee
The Influence of Individual Differences in Cognitive Ability on Working Memory Training Gains
No full textThe files contained in this project are the data and script used for the Wiemers, Redick, and Morrison paper entitled, "The influence of individual differences in cognitive ability on working memory training gains" in press at the Journal of Cognitive Enhancement. The paper can be viewed here: https://rdcu.be/bbOB
The Influence of Individual Differences in Cognitive Ability on Working Memory Training Gains
No full textThe files contained in this project are the data and script used for the Wiemers, Redick, and Morrison paper entitled, "The influence of individual differences in cognitive ability on working memory training gains" in press at the Journal of Cognitive Enhancement. The paper can be viewed here: https://rdcu.be/bbOB
Letter from Redick McKee to Luke Lea and Th. Butler King, 1851
No full textIn relation to money matters. Obtained an advance fund from Collector Th. Butler King. Is greatly in need of funds. Enclosed a copy of letter to Mr. King
Letter from T. Butler King with letter from Klamath County citizen committee and committee minutes, 1851
No full textInforms that two drafts of Redick Mckee have been transmitted to US Treasury to enable the mission to pacify the Indians. Enclosed 2 committee meeting minutes and a letter from the citizens of Klamath County
Letter, 1802 June 10, Washington, Tenn[essee] to [Thomas Jefferson], n.p.
No full textInformed by letter from a missionary of the United Brethern of Bethlehem that the Indians had been told they stood in no need of being taught Christianity; Chief White Eyes reports it was said by Mr. Jefferson; fears report will cause trouble.College of William and Mary. Swem Library. Jefferson ProjectPapers of Thomas Jefferson (Princeton University)The Gladys Krieble Delmas Foundatio
Using Pupillometry to Observe Covert Mental Activity during Prospective Memory Tasks
No full textRemembering to complete some future intention (i.e., prospective remembering) is a frequent requirement of everyday activities. Prospective memory failures (e.g., forgetting to take one’s medication) can have devastating consequences. Cognitive psychologists have sought to understand how individuals can successfully fulfill their prospective memory intentions. Unfortunately, it has been difficult to find evidence for specific cognitive mechanisms that could feasibly account for prospective memory behaviors. In part, this is because many theories of prospective memory stipulate that prospective remembering is accomplished through discrete/covert mental processes. In the current set of experiments, eye-tracking technology was used to test these various mechanistic explanations. Using an eye-tracking computer to measure pupillary responses to prospective memory task characteristics allowed for the observation of changes in discrete mental activity during the course of a prospective memory task scenario. Across two experiments, I observed elevated pupil dilation when participants were given additional prospective memory demands. Furthermore, when participants correctly recognized the presentation of a prospective memory target, it appeared that their pupil dilation increased dramatically, and elevated dilation persisted for several trials. This pattern of pupil dilation is consistent with an account of prospective remembering that suggests individuals sometimes engage in actively monitoring for an opportunity to11complete their prospective memory intention, and that at other times, individuals will reduce or discontinue monitoring activity until some cue brings the prospective memory intention back into mind. Consistent with such an account, individual differences in working memory were positively associated with pupil size only when the prospective memory task afforded monitoring. This was in line with recent research implicating the working memory system in facilitating active monitoring during certain prospective memory contexts. Finally, the current set of experiments demonstrated the utility of pupillometric methods for measuring active monitoring in a prospective memory scenario
Letter, 1802 June 19, Washington [D.C.] to David Redick, n.p.
No full text[Reply to Redick's letter of June 10, 1802 - faded and illegible.]College of William and Mary. Swem Library. Jefferson ProjectPapers of Thomas Jefferson (Princeton University)The Gladys Krieble Delmas Foundatio
Titrating Cognitive Control: Trial-Level Dynamic Use of Proactive and Reactive Cognitive Control
No full textCognitive control is accomplished by a set of higher-order cognitive processes that are recruited to aid in the completion of various tasks. A popular proposed mechanism is the Dual Mechanisms of Control (Braver, Gray, & Burgess, 2007), proposing proactive and reactive mechanisms. While neuroscience studies provide evidence that these are two distinct processes, it remains unclear whether the processes are competing, or whether they can be used together. That is, are the two processes able to both be enacted to some degree? Further, whether these mechanisms can be titrated to produce a gradient-like use of control on a trial-level basis is unknown. These are the two primary pursuits of this dissertation. Experiment 1 shows the titrated pattern of control use, indicating (a) sensitivity to task demands, and (b) dynamic use of proactive and reactive control at the trial level, in a new task. Further, a novel contribution is the observation of ability to titrate the use of control. Additional experiments relate performance on this task to working memory (Experiment 2), replicate the findings in an online format (Experiment 3), and differentiate performance from distance effects commonly seen in relative judgment tasks (Experiment 4). This work has implications for the understanding of how cognitive control functions and how dynamically the use of these mechanisms can be adjusted
Task manipulation effects on the relationship between working memory capacity and go/no-go performance
No full textSeemingly minor task manipulations can have large and sometimes unpredicted effects on task performance. Despite this, single tasks are typical in both research and assessment applications. This series of experiments aims to systematically investigate the differences between various perceptual and semantic versions of go/no-go tasks and their relationships with working memory capacity (WMC) with the goal of determining the cause of inconsistencies in the literature. Because these versions of the go/no-go have not previously been systematically studied, the first experiment does so. After determining which performance differences exist based on versions of both task and decision, and noting that these performance measures did not differ in the critical relationship with WMC, other patterns in the literature were examined. Experiment 2 used these patterns to determine a potential cause of the differences in WMC relationships with go/no-go outcome measures, inter-stimulus interval (ISI). Manipulating ISI influenced the relationships with WMC, though the decision type still had effects above and beyond that of the ISI
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