Eye tracking as an MT evaluation technique

Eye tracking has been used successfully as a technique for measuring cognitive load in reading, psycholinguistics, writing, language acquisition etc. for some time now. Its application as a technique for measuring the reading ease of MT output has not yet, to our knowledge, been tested. We report here on a preliminary study testing the use and validity of an eye tracking methodology as a means of semi-automatically evaluating machine translation output. 50 French machine translated sentences, 25 rated as excellent and 25 rated as poor in an earlier human evaluation, were selected. Ten native speakers of French were instructed to read the MT sentences for comprehensibility. Their eye gaze data were recorded non-invasively using a Tobii 1750 eye tracker. The average gaze time and fixation count were found to be higher for the “bad” sentences, while average fixation duration and pupil dilations were not found to be substantially different for output rated as good and output rated as bad. Comparisons between HTER scores and eye gaze data were also found to correlate well with gaze time and fixation count, but not with pupil dilation and fixation duration. We conclude that the eye tracking data, in particular gaze time and fixation count, correlate reasonably well with human evaluation of MT output but fixation duration and pupil dilation may be less reliable indicators of reading difficulty for MT output. We also conclude that eye tracking has promise as a semi-automatic MT evaluation technique, which does not require bi-lingual knowledge, and which can potentially tap into the end users’ experience of machine translation output.     

The relationships among students' future-oriented goals and subgoals, perceived task instrumentality, and task-oriented self-regulation strategies in an academic environment.

The authors performed path analysis, followed by a bootstrap procedure, to test the predictions of a model explaining the relationships among students' distal future goals (both extrinsic and intrinsic), their adoption of a middle-range subgoal, their perceptions of task instrumentality, and their proximal task-oriented self-regulation strategies. The model was based on R. B. Miller and S. J. Brickman's (2004) conceptualization of future-oriented motivation and self-regulation, which draws primarily from social-cognitive and self-determination theories. Participants were 421 college students who completed a questionnaire that included scales measuring the 5 variables of interest. Data supported the model, suggesting that students' distal future goals (intrinsic future goals in particular) may be related to their middle-range college graduation subgoal, to their perceptions of task instrumentality, and to their adoption of proximal task-oriented self-regulation strategies. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Mood changes associated with blood glucose fluctuations in insulin-dependent diabetes mellitus.

Examined relationships between blood glucose (BG) levels and self-reported mood in 34 19–68 yr old insulin-independent diabetes mellitus patients. Four times each day, Ss completed a mood/symptom checklist before a self-measurement of BG until 40 checklists had been completed. Half the items of the checklist described physical symptoms, and half described mood states. Within-S correlations and regressions showed that moods were related to BG for the majority of Ss and that, like physical symptoms, mood–BG relationships were idiosyncratic. Low BG levels were associated with negative mood states; positive mood items were almost always associated with high BG. High BG levels also frequently correlated with negative mood states, although the negative mood items that related to high glucose (anger, sadness) differed from those that tended to relate to low BG. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The role of organizational commitment in occupational stress models.

This study examined affective organizational commitment (AOC) and continuance organizational commitment (COC) as moderators of the relationship between job-related anxiety and intention to leave among 506 Israeli nurses who completed self-administered surveys. Prior research examining organizational commitment as a moderator between stress-related variables has shown inconsistent results, most probably because organizational commitment was tested as a moderator of stressor-strain relationships. Both AOC and COC buffered the relationship between job-related anxiety and intention to leave the hospital (i.e., the positive relationship was not as strong with high levels of commitment). There was no buffering effect on the relationship between role stressors and intention to leave. Further, the relationship between job-related anxiety and intention to leave increased more strongly for low levels (vs. high levels) of COC. Implications for the role of organizational commitment in stress models and implications for hospital administrators are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Microstructural Development during the Microwave Sintering of Yttria—Zirconia Ceramics

The microstructural development of 3 and 8 mol% yttria—zirconia ceramics during microwave sintering was studied and compared to conventionally heated samples. Microwave heating enhanced the densification processes occurring during constant-rate heating for both materials. No change was found in the grain size—density relationship for the 8 mol% yttria—zirconia. However, a small, but statistically significant shift favoring densification was found for the 3 mol% yttriazirconia. Differences in the responses of the two materials are not completely understood but may be due to the differences in the activation energy for grain growth and grain-boundary mobility.     

Alarm reaction in acquisition and social transmission of simulated-predator recognition by zebra danio fish (Brachydanio rerio).

Alarm reactions occur in response to alarm substance passively released by injury to skin of zebra danio fish (Brachydanio rerio). Visual observation of alarmed conspecifics yields socially facilitated alarm by observers. Concurrent exposure of fish to alarm substance and a novel odorant (morpholine) later produced learned alarm to morpholine alone. Fish trained with morpholine plus alarm substance were mixed in with naive fish for a test with morpholine alone. The naive fish, separated out from the mixed groups, then demonstrated not only an acquired alarm reaction to morpholine but also an ability to communicate the acquired recognition of a simulated predator to a new group of naive observers. The results suggest the operation of a sophisticated antipredator defensive system in zebra danios that involves unlearned releasing stimuli, social facilitation, visual communication, learned predator recognition, and social communication of predator recognition. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Effects of sociometric testing on children's behavior and loneliness in school.

Examined the effects of a positive and negative peer nomination sociometric measure on children's (a) interactions with peers in general, (b) interactions with preferred and nonpreferred playmates, and (c) ratings of mood and of loneliness in school. Twenty-three 5th graders completed either a peer nomination sociometric or a control task (nominating preferred and nonpreferred school subjects). Before and after the nomination task, observers assessed the affective quality (positive, neutral, or negative) of subjects' peer interactions, and children completed mood and loneliness questionnaires. The procedures were subsequently replicated by administering the sociometric task to the control subjects. Analyses revealed no differences between the peer and control nomination task groups on any of the dependent variables measured. Analyses of pre–post differences provided no evidence of negative effects, suggesting that the risk to elementary-school-age children of completing such a sociometric measure, provided certain procedural guidelines are followed, may be minimal. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Observed and perceived parental overprotection in relation to psychosocial adjustment in preadolescents with a physical disability: The mediational role of behavioral autonomy.

The purpose of this study was to test a mediational model of associations between parental overprotectiveness (OP), behavioral autonomy, and psychosocial adjustment in 68 families with 8- and 9-year-old preadolescents with spina bifida and a demographically matched sample of 68 families with able-bodied children. Measures included questionnaire and observational assessments of parental OP; parent and child reports of behavioral autonomy; and parent, child, and teacher reports of preadolescent adjustment. On the basis of both questionnaire and observational measures of OP, mothers and fathers of children with spina bifida were significantly more overprotective than their counterparts in the able-bodied sample, although this group difference was partially mediated by children's cognitive ability. Both questionnaire and observational measures of parental OP were associated with lower levels of preadolescent decision-making autonomy as well as with parents being less willing to grant autonomy to their offspring in the future. For the questionnaire measure of OP, and only for the spina bifida sample, the mediational model was supported such that parental OP was associated with less behavioral autonomy, which was, in turn, associated with more externalizing problems. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Nicotine gum and behavioral treatment in smoking cessation.

120 Ss (who smoked a mean of 30.5 cigarettes/day) were assigned either to intensive behavioral treatment, to nicotine gum in a low-contact treatment, or to the intensive behavioral plus nicotine gum treatment. At each assessment, Ss reported the number of cigarettes smoked in the previous 24 hrs and provided blood samples; assessments were conducted at 0, 3, 12, 26, and 52 wks. Results show that the combined treatment produced higher abstinence rates than the other 2 conditions at all assessments. These differences were significant at 3, 12, and 26 wks, but not at 52 wks. Nicotine dependence was assessed by blood cotinine levels, scores on a dependence scale, and by number of cigarettes smoked at pretreatment. It was found that Ss with high blood cotinines were more likely to be helped by nicotine gum treatment than were less dependent Ss. (4 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)