Race,social class,and response bias effects in grammatical processing

Black English and Standard English grammatical sentences were presented to 122 Black and White second graders in a modified cloze task. Both race and social class differences were sampled from within a single primary school, and both Black and White experimenters were utilized. No effects due to social class were found. Black subjects did better on Black English sentences than White subjects and showed fewer errors in the direction of Standard English syntax. An analysis of hit rates and false alarm rates suggested that Black subjects were more likely to emit Black English responses than White subjects but that both groups possessed equivalent sensitivity to grammatical differences. The results are not consistent with a deficit account of Black subjects' performance or with an explanation based on different dialect systems. Rather, it appears that Black and White children may differ only in their willingness to utilize specific response systems and may possess equal comprehension abilities in both dialect systems.This research was supported in part by funds made available to Bowling Green State University by NSF Institutional Grant No. GU-3619. Some of the findings were reported at the 83rd Annual Convention of the American Psychological Association, Chicago, 1975.     

Help Seeking: Effects of Visibility of Task Performance and Seeking Help

This study manipulated independently whether help seeking and task performance were public or private, since in public settings persons may lose esteem by seeking help or by demonstrating unsuccessful performance. Subjects were given false feedback that they were doing poorly on a task involving judging levels of neuroticism in others, and were given all opportunity to seek help by consulting a set of guidelines. The main result was an interaction with help seeking most likely when task performance was public and help seeking was private.     

Improving accuracy in an error detection task via task sequence

The intent of this study was to determine whether performance on an error detection task and a series of cognitive search and memory tasks would be affected if performed serially. Fifty-six participants were assigned into two experimental groups, defined by whether they performed the error detection task or the cognitive tasks first. Measures of hit rates and false alarms were taken for the error detection task, and the perceived workload of both tasks was measured immediately following completion. In the group that did the cognitive tasks first, a significant relationship between perceptions of mental demand on the cognitive tasks and subsequent performance on the error detection task was found. Also, false alarms in error detection were correlated with perceptions of time pressure and frustration measured after the error detection task. These results suggest that a mentally demanding initial task may facilitate performance in a subsequent cognitively-based task. Parts of this paper were presented at the American Psychological Society's annual convention in Atlanta, GA in June 2003. The author thanks Abbie Woodruff and Brandon Corbin for their work on the original presentation and their help in data collection, and Blaine Browne for helpful editorial comments.     

Improving accuracy in an error detection task via task sequence

The intent of this study was to determine whether performance on an error detection task and a series of cognitive search and memory tasks would be affected if performed serially. Fifty-six participants were assigned into two experimental groups, defined by whether they performed the error detection task or the cognitive tasks first. Measures of hit rates and false alarms were taken for the error detection task, and the perceived workload of both tasks was measured immediately following completion. In the group that did the cognitive tasks first, a significant relationship between perceptions of mental demand on the cognitive tasks and subsequent performance on the error detection task was found. Also, false alarms in error detection were correlated with perceptions of time pressure and frustration measured after the error detection task. These results suggest that a mentally demanding initial task may facilitate performance in a subsequent cognitively-based task. Parts of this paper were presented at the American Psychological Society's annual convention in Atlanta, GA in June 2003. The author thanks Abbie Woodruff and Brandon Corbin for their work on the original presentation and their help in data collection, and Blaine Browne for helpful editorial comments.     

Signal recognition as influenced by presentation schedules

Performance in a recognition task involving two amplitudes of the same tone was investigaled over a wide range of presentation schedules. The task was arranged so that there was no trial-to-trial feedback or other information regarding the relative frequencies of the two tones. The hit and false alarm rates (the proportion of “loud” responses to loud and soft stimuli, respectively) on any given trial were strongly influenced by the stimulus and response on the preceding trial. In general, Ss tended to repeat the last response and were more accurate after a stimulus alternation than after a stimulus repetition. In addition, hit and false alarm rates were inversely related to the presentation probability of the loud tone, in contrast to the direct relation typically found in signal detection experiments and in recognition experiments with trial-to-trial feedback. A mathematical model incorporating three processes (memory, comparison, and decision) was shown to give a good account of these data.     

Neuroticism and vigilance revisited: A transcranial doppler investigation

Selecting for vigilance assignments remains an important factor in human performance research. The current study revisits the potential relationship between vigilance performance and trait neuroticism, in light of two possible theories. The first theory suggests that neuroticism impairs vigilance performance by competing for available resources. The second theory, attentional control theory, posits that high neuroticism can result in similar or superior performance levels due to the allocation of compensatory effort. In the present study, Transcranial Doppler Sonography was used to investigate the neurophysiological underpinnings of neuroticism during a 12-min abbreviated vigilance task. Performance results were not modified by level of neuroticism, but high neuroticism was associated with higher initial CBFV levels and a greater CBFV decrement over time. These findings indicate that participants higher in neuroticism recruited additional cognitive resources in order to achieve similar performance, suggesting that there is more of an effect on processing efficiency than effectiveness.     

Predicting individual false alarm rates and signal detection theory: A role for remembering

The relationships between hit, remember, and false alarm rates were examined across individual subjects in three remember-know experiments in order to determine whether signal detection theory would be consistent with the observed data. The experimental data differed from signal detection predictions in two critical ways. First, remember reports were unrelated, or slightly negatively related, to the commission of false alarms. Second, both response types (remembers and false alarms) were uniquely related to hit rates, which demonstrated that the hit rate cannot be viewed as the result of a single underlying strength process. These results are consistent with the dual-process signal detection model of Yonelinas (1994), in which performance is determined by two independent processes--retrieval of categorical context information (remembering) and discriminations based on continuous item strength. Remember and false alarm rates selectively tap these processes, whereas the hit rate is jointly determined. Monte Carlo simulations in which the dual-process model was used successfully reproduced the pattern in the experimental data, whereas simulations in which a signal detection model, with separate "old" and "remember" criteria, was used, did not. The results demonstrate the utility of examining individual differences in response types when one is evaluating memory models.     

On the nature of associative information in recognition memory

In a typical associative-recognition task, participants must distinguish between intact word pairs (both words previously studied together) and rearranged word pairs (both words previously studied but as part of different pairs). The familiarity of the individual items on this task is uninformative because all of the items were seen before, so the only way to solve the task is to rely on associative information. Prior research suggests that associative information is recall-like in nature and may therefore be an all-or-none variable. The present research reports several experiments in which some pairs were strengthened during list presentation. The resulting hit rates and false alarm rates, and an analysis of the corresponding receiver operating characteristic plots, suggest that participants rely heavily on item information when making an associative-recognition decision (to no avail) and that associative information may be best thought of as a some-or-none variable.     

From state neuroticism to momentary task performance: A person × situation approach

The goal of this article was to investigate the mechanisms through which personality relates to task performance. We argue that perceptions of work pressure and task complexity trigger momentary levels of neuroticism (i.e., state neuroticism) and that these momentary levels of neuroticism predict momentary task performance. Moreover, we hypothesized that the relationship between momentary job demands and state neuroticism is moderated by trait neuroticism. To test this model, we conducted an event reconstruction study and a day reconstruction study. The results revealed that trait neuroticism indeed moderated the momentary job demands–state neuroticism relationship, and in three out of four cases state neuroticism was found to mediate the relationship between momentary job demands and momentary task performance. From a practical point-of-view our results suggest that employees’ task performance can be improved by enhancing the way in which individuals perceive job demands. This strategy would be particularly helpful for individuals for whom the momentary job demands–state neuroticism relationship is the strongest (i.e., employees high in trait neuroticism).     

In the heat of the moment: On the effect of state neuroticism on task performance

The aim of this study was to further shed light on the relationship between neuroticism and performance by taking into account the situation-specific experience of neuroticism when undertaking cognitive tasks. A total of 121 high-performing professionals completed a state measure of neuroticism before solving a complex cognitive task. Indicators of trait neuroticism and fluid intelligence were also collected. Analyses revealed a curvilinear effect of state neuroticism on task performance suggesting that moderate levels of neuroticism experienced in a given situation are most effective for cognitive performance. This effect remained unchanged when controlled for trait neuroticism and fluid intelligence. Findings support the importance of better understanding experiential effects of personality on task performance.     

The word-frequency paradox in recognition

High-frequency words are recalled better than are low-frequency words, but low-frequency words produce higher hit rates in a recognition test than do high-frequency words. Two experiments provided new date on the phenomenon and also evidence relevant to the dual process model of recognition, which postulates that recognition judgments are a function of increments in item familiarity and of item retrievability. First, recall and recognition by subjects who initially performed a single lexical decision task were compared with those of subjects who also gave definitions of high-, low-, and very low-frequency target words. In the second experiment, subjects initially performed either a semantic, elaborative task or an integrative task that focused attention on the physical, perceptual features of the same words. Both experiments showed that extensive elaborative processing results in higher recall and hit rates but lower false alarm rates, whereas word frequency has a monotonic, linear effect on recall and false alarm rates, but a paradoxical, curvilinear effect on hit rates. Elaboration is apparently more effective when the potential availability of meaningful connections with other structures is greater (as for high-frequency words). The results are consistent with the dual process model.     

Paradoxical effects of presentation modality on false memory.

Two experiments are reported in which the effects of presentation modality on false memory in recall and recognition are studied. False recall and recognition of critical targets are lower for non-presented items related to a study list when that study list is presented visually than when presented auditorily. This pattern of low levels of false memory for critical targets holds even when participants read the visually presented study items aloud. These results suggest that recollection of visual detail plays a role in the prevention of false memory. However, both the hit rates (true memory) and the false-alarm rates to weakly related distractors (non-critical targets) were higher for visual presentation than for auditory presentation, suggesting that more than one mechanism may underlie false recognition.     

Haste makes waste,but not for all: The speed-accuracy trade-off does not apply to neurotics

ObjectivesTo examine if neurotics are the exception to the speed-accuracy rule and in fact are more accurate when making faster decisions.DesignThe study employed a laboratory-based, cross-sectional design.MethodOne hundred and ninety-six elite young cricketers completed measures of neuroticism before performing a cricket-specific computer-based decision-making task.ResultsNeuroticism significantly moderated the relationship between decision-making time and decision-making accuracy such that decreases in response time were associated with improvements in decision-making accuracy for individuals with high levels of neuroticism. Conversely, decreases in response time were associated with decrements in accuracy for individuals with low levels of neuroticism.ConclusionsThe study presents the first data that confirm that speed accuracy trade-offs do not occur across all individuals; individuals with high levels of neuroticism benefit from making faster decisions.     

The Role of Recollection and Familiarity in the Context Variability Mirror Effect

Context variability refers to the number of preexperimental contexts that are associated with concepts. In four experiments, we investigated the basis for increased recognition memory for low context variability words. Low context variability was associated with greater recollection in the hit rates, and high context variability was associated with greater familiarity in the false alarms. Shortening the study time reduced recollection, but low context variability still influenced recollection in the hit rates. A modality change from study to test also reduced recollection but preserved recollective differences for low versus high context variability items. One interpretation of the results suggests that low context variability evokes more specific and, perhaps, idiosyncratic recollective associations during learning and that these associations support better recognition in the hit rates. By contrast, activating the larger number of associations for high context variability items may be mistaken for familiarity in the false alarm rates.     

Personality and American State Differences in Obesity Prevalence

ABSTRACT

The study was conducted to determine whether state obesity-prevalence rates can be predicted by state differences in residents’ levels on the Big Five personality variables (O. P. John &; S. Srivastava, 1999). State obesity prevalence was the mean percentage of the state population from 2000 to 2005 with a body mass index ≥ 30.0 as assessed by the Behavioral Risk Factor Surveillance System (Centers for Disease Control and Prevention, 2010), which currently interviews more than 350,000 adults annually. State neuroticism, extraversion, agreeableness, conscientiousness, and openness z scores, based on the responses of 619,397 residents to an Internet survey from 1999 to 2005, were taken from P. J. Rentfrow, S. D. Gosling, and J. Potter (2008). Alaska, Hawaii, and North Dakota had scores outside ?3 and +3 standard deviations on at least 1 variable and were excluded as outliers. For the 47 remaining states, state obesity prevalence was significantly correlated with neuroticism (.35), agreeableness (.38), openness (?.44), socioeconomic status (?.74), white percentage (?.34), and urbanization (?.43). Multiple regression analysis showed that socioeconomic status could account for 54.0% of the criterion variance and that agreeableness, neuroticism, and openness together could account for another 17.1%.     

Personality and American state differences in obesity prevalence

The study was conducted to determine whether state obesity-prevalence rates can be predicted by state differences in residents' levels on the Big Five personality variables (O. P. John & S. Srivastava, 1999). State obesity prevalence was the mean percentage of the state population from 2000 to 2005 with a body mass index > or = 30.0 as assessed by the Behavioral Risk Factor Surveillance System (Centers for Disease Control and Prevention, 2010), which currently interviews more than 350,000 adults annually. State neuroticism, extraversion, agreeableness, conscientiousness, and openness z scores, based on the responses of 619,397 residents to an Internet survey from 1999 to 2005, were taken from P. J. Rentfrow, S. D. Gosling, and J. Potter (2008). Alaska, Hawaii, and North Dakota had scores outside -3 and +3 standard deviations on at least 1 variable and were excluded as outliers. For the 47 remaining states, state obesity prevalence was significantly correlated with neuroticism (.35), agreeableness (.38), openness (-.44), socioeconomic status (-.74), white percentage (-.34), and urbanization (-.43). Multiple regression analysis showed that socioeconomic status could account for 54.0% of the criterion variance and that agreeableness, neuroticism, and openness together could account for another 17.1%.     

Interrupting recognition memory: Tests of familiarity-based accounts of the revelation effect

The revelation effect is a puzzling phenomenon in which items on a recognition test are more likely to be judged as "old" when they are immediately preceded by a problem-solving task, such as anagram solution. The present experiments were designed to evaluate Westerman and Greene's (1998) and Hicks and Marsh's (1998) familiarity-based accounts of this effect. We found comparable revelation effects when probes were preceded by an anagram or a numerical addition task and when subjects performed either one or two of these tasks. Taken together, the results do not support familiarity-based accounts of the revelation effect but are consistent with a proposed decision-based interpretation (i.e., criterion flux), in which it is assumed that the revelation task displaces the study list context in working memory, leading subjects to adopt a more liberal recognition decision criterion, thereby increasing the hit and false alarm rates.     

Analyzing recognition performance with sparse data

Experiments in which recognition performance is measured sometimes involve only a small number of observations per subject, rendering d' analysis unreliable (Schooler & Shiffrin, 2005). Here, we introduce, in signal detection models, subject-specific random variables to account for heterogeneous hit and false alarm rates among individuals. Population d' effects for comparing groups are estimated, in this approach, by pooling information from a sample of subjects across experimental conditions. The method is validated by a simulation study and is illustrated with an analysis of the effect of neutral and emotional words on recognition performance, employing the emotional Stroop task (Lee & Shih, 2007).     

Extraversion,Neuroticism, and Face-Name Learning

Previous research has attempted to relate personality traits to paired-associate learning. We tested name recall as a function of extraversion and neuroticism (as assessed by the Eysenck Personality Inventory) and task difficulty. Face photographs were paired with one of three levels of information: names only (an easy task); names and occupations; or names, occupations, and interests (a difficult task). On the easy and difficult tasks, extraverted subjects recalled more names than did subjects scoring at the median or below on that trait. Contrary to expectations, subjects scoring high on neuroticism recalled more names than did subjects scoring low on that trait. Neither trait was significantly related to recall on the moderately difficult task. There was no interaction between traits for name recall, but there was for interests: Neurotic introverts were significantly impaired at recalling interests, whereas the other subjects recalled interests better than names. These findings thus differ from those of paired-associate learning tasks using words and nonsense syllables.     

Schizophrenia and emotional rubbernecking

Orienting toward emotionally salient information can be adaptive, as when danger needs to be avoided. Consistent with this idea, research has shown that emotionally valenced information draws attention more so than does neutral information in healthy individuals. However, at times this tendency is not adaptive, and it may distract the individual from goals. People with schizophrenia (PSZ), though they frequently show deficits in attentional control, have also been shown to exhibit diminished recognition of and attention to emotional information. In the present study, we investigated how the presentation of emotionally salient information affected performance on a working memory task for PSZ and healthy controls (HC). We found that although hit rates were equal to those of HCs for PSZ, the PSZ made fewer false alarms—resulting in overall better performance—than did the HCs. Deficits in emotional processing in PSZ appear to provide an advantage to them in situations in which salient emotional information competes with active cognitive goals.