Fast pairs: a visual word recognition paradigm for measuring entrenchment, top-down effects, and subjective phenomenology

When word pairs having a familiar order are sequentially flashed on a computer in their non-familiar order, (code zip), observers have a strong phenomenology of seeing them in familiar order (zip code). Reversal errors remained frequent even when participants obtained perceptual experience of reverse-display items by beginning with a block of longer-duration trials. A forced-choice order-detection procedure reduced but did not eliminate reversal errors, showing that "fast pairs" is a robust perceptual illusion. Even adjective + noun pairs (green skirt) showed reversal errors, and reversal errors increased with the log frequency of the word pair, consistent with a strong role for statistical processing at the level of multi-word units.     

Non‐generalized and generalized conditioned reinforcers: establishment and validation

Conditioned reinforcers, or tokens, are frequently used in clinical settings; however, little applied research has focused on establishing and validating their effectiveness. Following pairing of a novel token with an edible reinforcer in the present study, preference and reinforcer assessments verified that the tokens functioned as conditioned reinforcers. Results indicated that the tokens were established as conditioned reinforcers that matched the reinforcer value of the primary reinforcers with which they had been paired. The effects of motivating operations (MOs) on the effectiveness of these conditioned reinforcers were then evaluated. Conditioned reinforcer effectiveness decreased during satiation conditions. Subsequently it was found that increasing the number of backup reinforcers with which the token was paired resulted in the effectiveness maintaining during satiation conditions. Copyright © 2008 John Wiley & Sons, Ltd.     

Varenicline ameliorates ethanol-induced deficits in learning in C57BL/6 mice

Ethanol is a frequently abused drug that impairs cognitive processes such as learning. Varenicline, an α4β2 nicotinic receptor partial agonist and α7 nicotinic receptor full agonist prescribed for smoking cessation, has been shown to decrease ethanol consumption. The current study investigated whether varenicline could ameliorate ethanol-induced deficits in learning and whether varenicline alters blood alcohol concentration in C57BL/6 mice. Conditioning consisted of two auditory conditioned stimulus (CS; 30 s, 85 dB white noise)—foot shock unconditioned stimulus (US; 2 s, 0.57 mA) pairings. For all studies, saline or ethanol (1.0, 1.5, 2.0 g/kg i.p.) was administered 15 min before training, and saline or varenicline (0.05, 0.1, 0.2 mg/kg i.p.) was administered 60 min before either training or testing. For blood alcohol analysis, saline or varenicline (0.1 mg/kg) was administered 60 min before collection, and saline or ethanol (1.0, 1.5, 2.0 g/kg) was administered 15 min before collection. Varenicline dose-dependently ameliorated ethanol-induced conditioning deficits for all three doses of ethanol when administered before training but not when administered 24 h later, before testing. In addition, varenicline did not alter blood alcohol concentration. The smoking cessation aid varenicline may have therapeutic uses for treating ethanol-associated disruptions in cognitive processes.     

Agency,perception, space and subjectivity

Phenomenology and the Cognitive Sciences - The goal of this paper is to illuminate the connections between agency, perception, subjectivity, space and the body. Such connections have been the...     

Parenting and toddler self-regulation in low-income families: What does sleep have to do with it?

Toddlerhood is a sensitive period in the development of self-regulation, a set of adaptive skills that are fundamental to mental health and partly shaped by parenting. Healthy sleep is known to be critical for self-regulation; yet, the degree to which child sleep alters interactive child–parent processes remains understudied. This study examines associations between observed parenting and toddler self-regulation, with toddler sleep as a moderator of this association. Toddlers in low-income families (N = 171) and their mothers were videotaped during free play and a self-regulation challenge task; videos were coded for mothers’ behavior and affect (free play) and toddlers’ self-regulation (challenge task). Mothers reported their child's nighttime sleep duration via questionnaire. Results revealed significant Sleep × Maternal Negative Affect and Sleep × Maternal Negative Control interactions. Children who did not experience negative parenting had good self-regulation regardless of their nighttime sleep duration. For children who did experience negative parenting, self-regulation was intact among those who obtained more nighttime sleep, but significantly poorer among children who were getting less nighttime sleep. Thus, among children who were reported to obtain less nighttime sleep, there were more robust associations between negative parenting and poorer self-regulation than among toddlers who were reported to obtain more sleep.     

The function of punishment in the "civil" commitment of sexually violent predators

Two experiments find that support for civil commitment procedures for sexually violent predators is based primarily upon the retributive rather than incapacitative goals of respondents. Two discrete samples composed of students (N = 175) and jury-eligible citizens (N = 200) completed experimental surveys assessing their support or opposition to scenarios in which a sexual predator was to be released after completing his criminal sentence. Respondents were sensitive to likelihood of recidivism only when the initial sentence was sufficiently punitive. When initial sentence was lenient, respondents strongly supported civil commitment without regard to future risk. Results are discussed in light of the U.S. Supreme Court's ruling in Kansas v. Hendricks (1997) on the constitutionality of civil commitment laws for sexually violent predators.     

Matters of Life and Death: Justice in Judgments of Wrongful Death1

Two experiments investigated the influence of social categories on mock juror judgments of wrongful death compensatory damages. The research also examined whether these cues—decedent race, parental status, age, and socioeconomic status—differentially affected noneconomic and economic awards and, further, the extent to which jurors' distributive justice concerns could explain the findings. Results revealed a decedent's parental status to consistently impact noneconomic awards; whereas his parental status, age, and socioeconomic status all consistently affected economic awards. Decedent race did not inform participants' judgments. These results were in close alignment with the values participants expressed (Study 2) regarding the use of social categories in compensatory damage awards. Overall, the pattern of findings supports a distributive justice account.     

Priming us and them: automatic assimilation and contrast in group attitudes

Social judgment theory holds that a person's own attitudes function as reference points, influencing the perception of others' attitudes. The authors argue that attitudes themselves are influenced by reference points, namely, the presumed attitudes of others. Whereas exposure to a group that acts as a contextual reference should cause attitude assimilation, exposure to a group that acts as a comparative reference should cause attitude contrast. In Study 1, participants subliminally primed with their political ingroup or outgroup endorsed more extreme political positions than did controls. Study 2 demonstrated that prime types known to uniquely facilitate assimilation and contrast enhanced the polarization effect in the ingroup and outgroup conditions, respectively. Study 3 established an important boundary condition for whether group salience produces attitude assimilation or contrast by showing that perceived closeness to the elderly moderates the direction and strength of the group priming effect. The results suggest that the transition from assimilation to contrast occurs when a group ceases to function as a context and becomes a comparison point. Implications for social judgment theory, assimilation and contrast research, and conflict escalation are discussed.     

Maternal employment and child cognitive outcomes: the importance of analytic approach

J. Brooks-Gunn, W. J. Han, and J. Waldfogel (2002) and the National Institute of Child Health and Human Development Early Child Care Research Network (ECCRN; 2000b) came to different conclusions about the effects of maternal employment--although they were addressing similar questions using the same data set. Brooks-Gunn et al. concluded that maternal employment in infancy has a negative effect on children's cognitive abilities at age 3, whereas the ECCRN found that early nonmaternal care is not related to children's cognitive abilities in their first 3 years. The authors account for this difference by comparing 2 approaches to data analysis: a top-down testing of continuous variables (the approach used by the ECCRN, 2000b) and an a priori comparison approach that involves pairwise testing of specific dichotomous contrasts (the approach used by Brooks-Gunn et al., 2002). This comparison illustrates the critical importance of analytic approach. It also suggests that Brooks-Gunn et al.'s conclusion from this data set is overstated and should not be used on its own as the basis for practical or policy decisions.