Factors affecting metamotivational reversals during motor task performance

Reversal theory proposes that the individual's psychological state constantly switches between metamotivational state pairs (such as Apter's 1982 telic-paratelic pair). Three factors are thought to affect reversals: frustration, contingent event, and satiation. Only a few studies have directly investigated these factors in sports contexts, and evidence is needed to assess support for these factors. In a laboratory setting, 24 participants performed a telic and a paratelic version of a dart-throwing task for 10 min. Participants were free to change from one task version to another as they wished, and reasons for any task changes were solicited. Task changes, indicative of reversals, were observed in 11 participants, and these were reported as due to satiation or frustration but not to contingent events. These findings may inform the structure of sessions on skill development but require confirmation in actual sports contexts.     

Sex differences and individual consistency in voice identification

Results were combined from 5 experiments by Cook in 1998 with 728 participants who listened to one male voice and one female voice each saying a sentence, then attempted to recognise the voices from line-ups of six voices presented a week later. While 352 male listeners did not differ significantly in recognising female and male voices (38% correct vs 41%), 376 female listeners were significantly more likely to recognise female than male voices (51% vs 43% correct). There was no evidence for individual differences in voice recognition in that listeners who recognised the male voice were no more likely to recognise the female voice than those who failed to recognise the male voice.     

Comparative analysis of different correction methods for measuring Rod-and-Frame Test performance

A comparative analysis was conducted of five different methods for scoring the Rod-and-Frame Test to examine the convergent validities of each of the five methods with performance on the Embedded Figures Test for a sample of 408 13- to 16-yr.-olds. The scoring methods included the absolute error, the algebraic error, the absolute value of the algebraic error, the frame effect, and an assessment of relative field dependence. Correlations obtained among the five methods and the Embedded Figures Test indicated different patterns for boys and girls. In general, the method which employed the absolute value of the algebraic error yielded the strongest convergent validity coefficients with scores on the Embedded Figures Test and Group Embedded Figures Test for boys (.62 and -.54, respectively), although, for girls, the absolute algebraic error and absolute error both yielded coefficients of .50 with Embedded Figures Test scores and -.46 with Group Embedded Figures Test scores.     

Flight and abduction in witchcraft and UFO lore

The lore surrounding the mythical Witches' Sabbat and contemporary reports of UFO abductions share three main characteristics: the use of masks, the appearance of "Men in Black," and references to flight and abduction. We review these three commonalities with particular focus on the aspect of flight and abduction. We argue that narratives of the Witches' Sabbat and UFO abductions share the same basic structure, common symbolism, and serve the same psychological needs of providing a coherent explanation for anomalous (ambiguous) experiences while simultaneously giving the experient a sense of freedom, release, and escape from the self. This pattern of similarities suggests the possibility that UFO abductions are a modern version of tales of flight to the Sabbat.     

Job insecurity in a sample of Canadian civil servants as a function of personality and perceived job characteristics

Economic downturns and organisational changes have stimulated studies on the importance of job security for public employees; however, there has been some disagreement as to whether job insecurity should be defined using a single- or a two-factor model, on how to measure it and which antecedents and consequences are linked to it. Questionnaires measuring job insecurity as well as personality traits and job characteristics as possible antecedent variables, and job performance and job satisfaction as possible consequences were completed by a sample of 71 federal government employees during recent important government downsizing. A multiple regression analysis indicated that job insecurity, defined as a combination of organisational or personal vulnerability, was significantly related to only two antecedent variables, i.e., Neuroticism and job characteristics. Further regression analyses indicated that job insecurity was a statistically significant moderator but only between one consequence, i.e., intention to quit, and the job characteristics variable. These results along with methodological issues and further research, are discussed.     

On the locus of the semantic satiation effect: Evidence from event-related brain potentials

The present study sought to determine whether semantic satiation is merely a by-product of adaptation or satiation of upstream, nonsemantic perceptual processes or whether the effect can have a locus in semantic memory. This was done by measuring event-related brain potentials (ERPs) in a semantic word-detection task involving multiple presentations of primes and critical related and unrelated words in three experiments involving visual (Experiment 1) and auditory (Experiments 2A and 2B) stimuli. Primes varied in their type case (Experiment 1) or pitch (Experiment 2B) in order to discourage sensory adaptation. Prime satiation and relatedness of the primes to the critical word had interacting effects on ERP amplitude to critical words, particularly within the time-window of the N400 component. Because numerous studies have indicated a role for the N400 in semantic processing, modulation of the N400 relatedness effect by prime satiation (with little or no contribution from perceptual adaptation) suggests that semantic memory can be directly satiated, rather than the cost to semantic processing necessarily resulting from impoverishment of perceptual inputs.     

The categorical perception of colors and facial expressions: The effect of verbal interference

A series of five experiments examined the categorical perception previously found for color and facial expressions. Using a two-alternative forced-choice recognition memory paradigm, it was found that verbal interference selectively removed the defining feature of categorical perception. Under verbal interference, there was no longer the greater accuracy normally observed for cross-category judgments relative to within-category judgments. The advantage for cross-category comparisons in memory appeared to derive from verbal coding both at encoding and at storage. It thus appears that while both visual and verbal codes may be employed in the recognition memory for colors and facial expressions, subjects only made use of verbal coding when demonstrating categorical perception.     

Contextual effects on word production: A lifespan study

The effect of sentence priming on picture naming was investigated across the lifespan, from age 3 to 87 years. Names that are normally acquired before 3 years of age were presented in auditory contexts that were semantically congruent, incongruent, or neutral in relation to each picture and its name. Sentential priming was present at all age levels. Facilitation (neutral vs. congruent) was significantly by 4 years of age and did not vary significantly with age. Interference (incongruent vs. neutral) was significant at all age levels, but changed nonmonotonically with age (largest in the youngest children, stable from young adulthood through age 70, with a small increase in the oldest participants). We conclude that picture naming is a useful tool for the investigation of sentential priming effects across the lifespan and that it can reveal potentially interesting developmental changes in the effects of sentential context on word retrieval.     

Word Frequency Effects on the Processing of Subject–Verb Number Agreement

This paper examines the role of word frequency in the computation of subject–verb number agreement. Previous research in both production and comprehension has demonstrated that processing difficulties can arise in sentence structures containing a singular subject noun followed by a plural distractor noun, as in The key to the cabinets.¨ A whole sentence reading task was employed to determine whether the relative frequency with which the distractor noun appears in its singular or plural form would affect the degree of processing difficulty experienced by readers. Results suggest that the agreement process is, indeed, sensitive to this factor and this finding is compatible with activation-based accounts of the implementation of number agreement.