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281.
Developmental Differences in Metacognition and their Connections with Cognitive Development in Adulthood 总被引:1,自引:0,他引:1
This study investigated developmental differences in some metacognitive variables in ill-defined problem solving and their
possible connections with cognitive development in adulthood. Participants were 57 individuals of different ages (adolescents,
young adults, mature adults and older adults). They solved one well-defined and six ill-defined problems while their thinking-aloud
was taped. They then answered a metacognitive statements questionnaire. Differences in performance were statistically significant
in all problems: the best results in interpolation and divergent production problems were achieved by the younger adult group
and the best performance on most dialectical everyday problems was found in the mature adults' group. We found no significant
differences between age groups in the on-line monitoring of the solving process. Accuracy in metacognitive statements was
however significantly better in the mature adult and the younger adult groups. Awareness of and reflection on one's own mental
processes showed a similar developmental pattern to relativistic/dialectical thought: low expression in adolescence, an increase
in early adulthood, a peak in mature adulthood and a minor decline in later years. 相似文献
282.
To investigate the contested role of notional number in English subject-verb agreement, we used a sentence completion task
to examine agreement with minimally different subject noun-phrases, such as the gang on the motorcycles and the gang near
the motorcycles. These contrasting phrases biased different notional construals of collective nouns, such as gang, which are
normally ambiguous between plural (distributed) and singular (collected) construals. With subjects biased toward spatial distribution,
such as gang on motorcycles, more plural verbs occurred in speakers’ sentence completions than in sentence completions with
a bias toward spatial collection such as gang near motorcycles. This offers strong evidence regarding both the existence and
the magnitude of notional effects on subject-verb number agreement in English. 相似文献
283.
In the Implicit Association Test (IAT; Greenwald, McGhee, & Schwartz, 1998) involving race classification (white vs. black),
an apparent compatibility effect is found between the “pleasant” attribute and the “white” category. This race IAT effect
has been interpreted in terms of “implicit prejudice”—that is, more positive evaluation of whites than of blacks that is not
open to consciousness. We suggested instead that the race IAT effect is better interpreted in terms of the salience asymmetry
account proposed by Rothermund and Wentura (2004), whereby greater familiarity with the white category makes it more salient.
Evidence that has been presented against the familiarity interpretation is considered, and alternative interpretations of
findings related to the race IAT effect are discussed. 相似文献
284.
We examined the influence of encoding and generation processes on distinctiveness, isolation, and background effects in short-term
recall of order information. Adults recalled the order of letters in one of two segments following a distractor task, knowing
in advance the identity of the letters. A distinctive letter was one that was either in red or absent and replaced with a
red dash, thereby requiring generation. On trials with a distinctive letter, the letter was primed in advance. A negative
generation effect was found; in addition, there was a positive distinctiveness effect but a negative background effect on
trials in which generation was required. These effects can be explained in terms of the extra processing given to distinctive
items when they need to be generated. 相似文献
285.
Visual word recognition is commonly argued to be automatic in the sense that it is obligatory and ballistic. The present experiments
combined Stroop and visual search paradigms to provide a novel test of this claim. An array of three, five, or seven words
including one colored target (a word in Experiments 1 and 2, a bar in Experiment 3) was presented to participants. An irrelevant
color word also appeared in the display and was either integrated with or separated from the colored target. The participants
classified the color of the single colored item in Experiments 1 and 3 and determined whether a target color was present or
absent in Experiment 2. A Stroop effect was observed in Experiment 1 when the color word and the color target were integral,
but not when the color word and the color target were separated. No Stroop effect was observed in Experiment 2. Visual word
recognition is contingent on both the distribution of spatial attention and task demands. 相似文献
286.
We examined two different accounts of why studying distinctive information reduces false memories within the DRM paradigm.
The impoverished relational encoding account predicts that less memorial information, such as overall familiarity, is elicited
by the critical lure after distinctive encoding than after nondistinctive encoding. By contrast, the distinctiveness heuristic
predicts that participants use a deliberate retrieval strategy to withhold responding to the critical lures. This retrieval
strategy refers to a decision rule whereby the absence of memory for expected distinctive information is taken as evidence
for an event’s nonoccurrence. We show that the typical false-recognition suppression effect only occurs when the recognition
test is self paced. This suppression effect is abolished when participants make recognition decisions under time pressure,
such as within 1 second of seeing the test item. These results are consistent with the distinctiveness heuristic that a time-consuming
retrieval strategy is used to reduce false-recognition responses. 相似文献
287.
Orienting to a signal source is widely viewed asautomatic in the sense that it is triggered by the stimulus. However, this behavior is typically assessed in a context in which the
subject knows beforehand what he or she has to do. In the present experiments, the role of task set was investigated by having
the response vary randomly from trial to trial. On some trials, a cue signaled the subject to respond, and on the remaining
trials, another cue signaled the subject to withhold a response. Stimulus contrast and temporal overlap between task cue and
target were manipulated. The effect of a reduction in stimulus contrast was sometimes absorbed into the time taken to decode
the cue, but critically, other times not. These results highlight the theoretical importance of considering task set as an
essential element in processing, and they undermine the theoretical claim that putatively automatic processes are not subject
to interference from other mental activities. 相似文献
288.
Although many nonlinear models of cognition have been proposed in the past 50 years, there has been little consideration of
corresponding statistical techniques for their analysis. In analyses with nonlinear models, unmodeled variability from the
selection of items or participants may lead to asymptotically biased estimation. This asymptotic bias, in turn, renders inference
problematic. We show, for example, that a signal detection analysis of recognition memory data leads to asymptotic underestimation
of sensitivity. To eliminate asymptotic bias, we advocate hierarchical models in which participant variability, item variability,
and measurement error are modeled simultaneously. By accounting for multiple sources of variability, hierarchical models yield
consistent and accurate estimates of participant and item effects in recognition memory. This article is written in tutorial
format; we provide an introduction to Bayesian statistics, hierarchical modeling, and Markov chain Monte Carlo computational
techniques. 相似文献
289.
290.
Much previous research has demonstrated that visual search is typically disrupted by the presence of a unique “singleton”
distractor in the search display. Here we show that attentional capture by an irrelevant color singleton during shape search
critically depends on availability of working memory to the search task: When working memory is loaded in a concurrent yet
unrelated verbal short-term memory task, capture increases. These findings converge with previous demonstrations that increasing
working memory load results in greater distractor interference in Stroop-like tasks (de Fockert, Rees, Frith, & Lavie, 2001;
Lavie, Hirst, de Fockert, & Viding, 2004), which support the hypothesis that working memory provides goal-directed control
of visual selective attention allowing to minimize interference by goal-irrelevant distractors. 相似文献