REPETITION BLINDNESS INTERACTS WITH SYNTACTIC GROUPING IN RAPIDLY PRESENTED SENTENCES

Abstract— This study rested for predicted effects of syntax on a repetition deficit (RD) known as repetition blindness, the reduced probability of recall for repeated words in rapid serial visual presentation (RSVP) sentences The syntactic variable was phrase-congruent versus phrase-incongruent grouping within simultaneous RSVP displays With phrase-congruent grouping, each RSVP display contained a syntactic phrase (e g, "to play sports" in the sentence "They wanted to play sports but sports were not allowed"), whereas with phrase-incongruent grouping, RSVP displays contained nonphrases (e g, "sports but sports") RD was extensive with phrase-incongruent grouping (29%), but nonsignificant (6%) with phrase-congruent grouping, as if phrase-congruent groups free up the extra processing time needed to connect repeated words into phrases in rapidly presented sentences, enabling top-down retrieval of the phrases during recall The present results comport with effects of syntax and prosody on auditory RD, and suggest that visual and auditory RD are identical underlying phenomena.     

Developmental differences in risk factors for suicide attempts between ninth and eleventh graders

In order to identify differences in risk factors for suicide attempts throughout adolescence, this study utilized a school-based survey of ninth (n = 1,192) and eleventh graders (N = 1,055). Suicide attempts were associated with cigarette and alcohol use, family violence, and depression for ninth graders and with illicit drug use, school violence, and sexual abuse for eleventh graders, while having friends was protective for both groups. Additionally, having more than one risk factor imparted an exponential risk for suicide attempts (ninth > eleventh graders). The differences detected are consistent with developmental changes of adolescence and represent important information for identification of at-risk youth.     

Syntactic class influences phonological priming of tip-of-the-tongue resolution

During tip-of-the-tongue (TOT) experiences, phonologically related words have both facilitated and impeded word retrieval. In the present experiment, we examined whether phonologically related words’ syntactic class (part of speech) is responsible for these differential effects. Sixty college students saw general knowledge questions whose answers were designated target words and responded “know,” “don’t know,” or “TOT.” Following “TOT” and “don’t know” responses, the participants saw five words, one of which was a prime. The primes contained the target’s first syllable and either shared or did not share the target’s part of speech. Following presentation of the primes, retrieval of the target was attempted again. Different-part-of-speech primes facilitated resolution of TOT states, whereas same-part-of-speech primes had no effect, relative to phonologically unrelated words. These results support node structure theory’s most-primed-wins principle and the transmission deficit model account of TOT states and detail the importance of syntactic class in the selection of words that are candidates for speech production.     

Animal ethical evaluation: an observational study of Canadian IACUCs

Three Canadian institutional animal care and use committees were observed over a 1-year period to investigate animal ethical evaluation. While each protocol was evaluated, the observer collected information about the final decision, the type of protocol (research vs. teaching), and the category of invasiveness. The observer also wrote down verbatim all verbal interventions, which were coded according to the following categories: scientific, technical, politics, human analog, reduction, refinement, and replacement. The data revealed that only 16% of the comments were devoted to the 3 explicit ethical categories (i.e., reduction, refinement, and replacement) and that most of the comments were technical. However, the analysis revealed that ethical concerns were implicit in both scientific and technical language, or some of the scientific and technical comments had an impact on the ethical treatment of animals. The results are discussed in relation to previous nonobservational research that identified potential pitfalls and bias in animal ethical evaluation.     

The Crisis Support Scale: psychometric qualities and further validation

The objective of the present study was to provide a further validation of the Crisis Support Scale, which is a short scale for measuring social support after a crisis has occurred. The data from eleven trauma studies of 4213 subjects were used to investigate the psychometric properties of the scale and the differences that emerge due to age, gender, and type of trauma. The scale appears to be very robust. Some aspects of crisis support seem to decrease as time goes by while others increase. Women survivors report less support than men both right after the trauma and later on. The younger survivors tend to report the least support in the acute phase although this picture is reversed later on. The various types of trauma have different item profiles, which supports the concurrent validity of the scale.     

Why a superman cannot help a tsunami: activation of grammatical class influences resolution of young and older adults' tip-of-the-tongue states

Young (aged 18-23), young-old (aged 61-73), and old-old (aged 75-89) adults saw general knowledge questions whose answers were designated target words. Participants responded that they knew, did not know, or were having a tip-of-the-tongue (TOT) state for the answer. After TOT states, participants saw a 5-word list in which 1 was a "prime" containing the target's first syllable and that shared or differed in part of speech from the target. The question was then presented again, and target retrieval was attempted. Results revealed age differences in resolution of TOT states as a function of the prime's grammatical class. Following different part-of-speech primes, young and young-old adults showed increased resolution of TOT states relative to phonologically unrelated words, whereas old-old adults did not. In contrast, old-old adults demonstrated decreased resolution of TOT states following same part-of-speech primes, whereas young and young-old adults' TOT resolution was unaffected. These findings are consistent with interactive activation theories of speech production in which phonology can influence lexical selection and also suggest an increased susceptibility to phonological competitors in the later stages of the aging process.     

Bootstrapping to test for nonzero population correlation coefficients using univariate sampling

This article proposes 2 new approaches to test a nonzero population correlation (rho): the hypothesis-imposed univariate sampling bootstrap (HI) and the observed-imposed univariate sampling bootstrap (OI). The authors simulated correlated populations with various combinations of normal and skewed variates. With alpha set=.05, N> or =10, and rho< or =0.4, empirical Type I error rates of the parametric r and the conventional bivariate sampling bootstrap reached .168 and .081, respectively, whereas the largest error rates of the HI and the OI were .079 and .062. On the basis of these results, the authors suggest that the OI is preferable in alpha control to parametric approaches if the researcher believes the population is nonnormal and wishes to test for nonzero rhos of moderate size.