Listener judgements of fluency: The effect of part-word CV repetitions and neutral vowel substitutions

Three groups of forty subjects listened individually to one of four recordings of voluntary disfluencies. Disfluencies took the form of either one or two-unit repetitions and contained either the correct vowel or the stressed neutral vowel in place of the correct vowel. Each listener rated the speaker on a five point scale where 1 represented the most fluent rating and 5 represented the least fluent rating. Results indicated no significant difference in the ratings of the four recordings. Overall severity ratings decreased as training in speech pathology increased. Graduate students in Speech Pathology rated three of the four tapes as being significantly more fluent than the non-Speech Pathology undergraduates. While Speech Pathology graduate students tended to rate the four tapes as being more fluent than did the Pre-professional Speech Pathology students, only one tape was rated significantly different.     

Teaching for the recovery of meaning: An imagination‐centered pedagogical approach for today's college students

In the face of a mounting mental health crisis among college students, professors have an opportunity and responsibility to respond to their students’ psychological distress. Psychological and historical scholarship suggests that the proliferation of modern media and breakdown in traditional sources of existential meaning like religion are significant factors in young adults’ declining mental health. In response to this crisis, this article examines the crucial role of the imagination in constructing meaning and proposes an imagination‐centered pedagogical process by means of which teachers can assist students in recovering meaning and integration in their lives.     

The neural bases of the constructive nature of autobiographical memories studied with a self-paced fMRI design

In Conway and Pleydell-Pearce's model (2000), autobiographical memories are viewed as transitory mental representations, more often generated in an effortful way. An important claim of the model concerns the dynamic process that evolves over time, from the left prefrontal areas to posterior regions, to retrieve specific memories. The present work aims at investigating, using fMRI, the temporal distribution of effortful autobiographical memory construction. In addition, a self-paced design was implemented to elucidate the question of the timing window required to evoke recollections. The results showed a large pattern of brain regions, which included the two major poles of activation predicted by Conway and Pleydell-Pearce's model. Likewise, we were able to detect the earlier implication of the left dorso-lateral prefrontal cortex, by comparison with posterior structures, which seemed to confirm its involvement in the effortful retrieval process. Finally, the self-paced procedure allowed us to refine the timing window necessary to construct past events.     

Time-till-breakdown and scalp electrical potential maps of long-range apparent motion

A series of psychophysical and electrophysiological experiments is reported using the apparent motion (AM) breakdown effect. Breakdown describes an effect in AM in which, during continuous viewing, the percept of smooth motion of a single stimulus alternates with the percept of two discrete alternating stimuli. Visual evoked potentials (VEPs) were recorded during periods of motion or breakdown (“nonmotion”) in horizontal and vertical displays. VEPs were compared with synthetic VEPs (“composite-flash”) produced by adding VEPs to each element of the display recorded in isolation. Subtraction of VEPs was used in an attempt to compare the electrical responses with the processing of information relating to the form of the stimulus, subthreshold motion processing, and suprathreshold motion processing. The results, presented as scalp electrical potential distribution maps, were interpreted as consistent with a central adaptation process underlying the breakdown effect. The results also indicated that the hemispheric asymmetries in AM VEPs described by Manning, Finlay, and Fenelon (1988) were most likely due to the position of the stimuli in the visual field, rather than as a lateralization of motion processes per se. The results also provided evidence that the subthreshold and suprathreshold motion responses to the display were the product of different populations of motion units.     

PHYSICAL AND PSYCHIATRIC CORRELATES OF GENDER DISCRIMINATION

We tested the model that sexist discrimination, measured by the Schedule of Sexist Events (SSE), would account for additional variance in women's physical and psychiatric symptoms, above and beyond that accounted for by generic stressors. A series of hierarchical regression analyses, predicting symptoms on 10 different symptom outcome measures from generic stress and sexist stress (discrimination) were conducted, with the generic stressors entered on the first step and sexist discrimination on the second. Results revealed that sexist discrimination contributed significantly to the variance in women's symptoms, accounting for additional variance in those symptoms. Furthermore, sexist discrimination accounted for more of the variance than did generic stressors in premenstrual, depressive, obsessive-compulsive, somatic, and total psychiatric and physical symptoms. These findings varied with the age and ethnicity of the women and with the symptom measure used, but nonetheless suggest that sexist discrimination plays a significant role in women's most prevalent symptoms.     

Influence of task demand characteristics on workload and performance

Two experiments are reported that examined the influence of variation in task demand on performance and workload. The first experiment considered how the manipulation of prior level of task demand affected subsequent workload and performance. The second experiment examined the effects on performance and workload of increments in the level of task demand. Results from the first study indicated that prior level of imposed task difficulty did affect response in a manner consistent with a scaling of workload in relation to previous task conditions. The second study demonstrated the primacy of absolute demand level over increments in that demand as influencing operator response. Overall, our results indicate that workload and performance are sensitive to multiple characteristics of the task and not instantaneous demand level alone. These findings are important in explaining why association and dissociation occur between task demand, operator efficiency, and perceived workload in differing performance contexts. The importance of these findings for the aviation psychologist in assessing pilot and operator workload is articulated.     

Young people's theories of anorexia nervosa and obesity

One hundred and forty-seven participants completed a 108-item questionnaire, based on that used by Fumham and Hume-Wright in 1992 aournal of Clinical Psychology, 48, 20-36) that looked at their beliefs about the causes and cures of anorexia neruosa and obesity. The four parts of the questionnaire were individually factor analysed and an intevretable factor structure emerged for each. while age and knowing someone with anorexia neruosa or obesity did not correlate with the factors obtained, sex, actual body size, estimated body size and having experience of an eating disorder were found to correlate significantly with a number of factors. Factors of cause and cure were not correlated regarding anorexia neruosa, but were for obesity. Several correlations within cause and cure, across both disorders, were also significant. The implications of these jindings and how they relate to the theories described in the Introduction are considered in the Discussion.     

Recency and suffix effects in pictures as a function of recall method

Two studies compared recency and suffix effects in pictures. In Experiment 1, which used strict serial recall, the recall curve for the control condition fell sharply until the final position when it exhibited a small but significant amount of recency. No suffix effects were present. In Experiment 2, a modified free recall condition exhibited a U-shaped serial position curve and significant recency. Picture and graphic suffixes led to small, reliable end-of-sequence suffix effects, but spoken suffixes did not. Thus pictures appear to lead to recency and suffix effects similar to those produced by static visual alphanumeric stimuli when strict serial recall is used. With a modified free recall procedure, recency is enhanced and suffix effects appear. The implications of the results with pictures and of differences between the two recall procedures are discussed with respect to literature in the area on pictures (Cohen, 1972) and American Sign Language (Krakow & Hanson, 1985; Shand & Klima, 1981). Additionally, some new methods of defining and analyzing recency, which are also applicable to primacy, are proposed and used in the paper to bring out more clearly the effects present.