Punishment of Schedule-Induced Drinking by Lick-Dependent Delays in Food Presented at Different Frequencies

The Psychological Record - Three food-deprived rats (80% of their free-feeding weights) developed schedule-induced drinking after being exposed to a multiple fixed-time schedule (FT 60-s FT 18-s)...     

Parietal ERP Activity and Appetite

Recent research on brain activity suggests that visual attention increases in response to emotional images. This increase is reflected in signs of greater activity, in response to different emotional visual stimuli, in parietal and parietooccipital areas in several studies employing neuroimaging techniques and event-related potentials (ERPs). In the latter case, greater parietal and parietooccipital negativities have been observed. The objective of the present study was to examine the role of a person's level of motivation towards the emotional stimulus with respect to this ERP pattern. Two groups of stimuli were presented to 60 participants: neutral or N (photographs of taps) and appetitive or A (photographs of cakes). The level of hunger was measured via a questionnaire. Recordings were taken at PO3, PO4, P7, and P8. The largest differences, as a function of appetite, were produced between 575 and 625 ms. Multiple regression analyses were carried out to study the relationship between subjects' appetite and their ERP recordings in response to A and N stimuli. There was a significant negative association between appetite and 575–625 mean amplitude in response to stimulus A at PO3 and PO4.     

Testing the age related differentiation hypothesis through the Wechsler’s scales

According to the age differentiation hypothesis (ADH), g becomes increasingly invested in specific abilities with age: with increasing age, g should account for a decreasing proportion of the variance in any particular cognitive test. However, there is no conclusive evidence concerning this important topic. Data from the Italian, Spanish, and American standardisation samples of the WPPSI and the WISC-R were analysed in the present study for testing the ADH. No changes in the proportion of variance associated with g in the 4–16 age range were found. This pattern does not change depending on the country. Therefore, the ADH is rejected: g seems to be very stable across age, and, thus, it seems to be an equally important component of intelligence test performance from early childhood to late adolescence.     

Effect of Concurrent Visual Feedback Frequency on Postural Control Learning in Adolescents

The purpose was to find better augmented visual feedback frequency (100% or 67%) for learning a balance task in adolescents. Thirty subjects were divided randomly into a control group, and 100% and 67% feedback groups. The three groups performed pretest (3 trials), practice (12 trials), posttest (3 trials) and retention (3 trials, 24 hours later). The reduced feedback group showed lower RMS in the posttest than in the pretest (p = 0.04). The control and reduced feedback groups showed significant lower median frequency in the posttest than in the pretest (p < 0.05). Both feedback groups showed lower values in retention than in the pretest (p < 0.05). Even when the effect of feedback frequency could not be detected in motor learning, 67% of the feedback was recommended for motor adaptation.     

Incivility at work,upset at home? Testing the cross‐level moderation effect of emotional dysregulation among female nurses from primary health care

Workplace incivility is a growing problem in nursing. However, most studies that explore this psychosocial risk and its consequences do so considering a single level and a between‐person perspective. The aims of the study were to explore whether the effects of experiencing incivility during work‐time could explain the daily levels of well‐being of nurses at home; and to analyze if that relationship could be moderated by their levels of emotional dysregulation as a trait. This is a multilevel study with diary methodology. The study was carried out in 18 primary health‐care centers belonging to Madrid and the Basque Country, in Spain. Ninety‐four nurses completed a general questionnaire and 54 of them a diary booklet over five consecutive working days in two different moments, immediately after work and at bedtime. The results showed that nurses’ emotional dysregulation moderated the relationship between daily workplace incivility and daily fatigue, and positive affect at night at home. However, there were no direct effects of daily incivility on these outcome variables. In conclusion, the presence of difficulties in emotional regulation among nurses can increase the negative effects of daily workplace incivility on their health and well‐being.     

Examining the effects of group‐based instruction on emergent second‐language skills in young children

The present study evaluated the emergence of second‐language intraverbals in typically developing young children following a small‐group teaching intervention. Choral responding was employed with a group of 6 primary school children (5‐6 years old) to teach first‐language tacts (e.g., “What is this in English?” [“Hospital”]) and related second‐language tacts (e.g., “What is this in Welsh?” [“Ysbyty”]). A multiple‐probe design across stimulus sets was used to evaluate subsequent emergence of untrained first‐to‐second‐language derived intraverbals (e.g., “What is hospital in Welsh?” [“Ysbyty”]) and untrained second‐to‐first‐language intraverbals (e.g.,”What is ysbyty in English?” [“Hospital”]). Data indicated that the choral responding intervention produced robust increases in derived intraverbal relations for 3 of the 6 participants.     

Terrorist threat,dehumanization, and right‐wing authoritarianism as predictors of discrimination

This study analyzed the relationship between terrorist threat and discrimination, operationalized by support for retributive justice against Islamic groups suspect of terrorist crimes. Two experimental studies were performed. Study 1 (N = 215) showed that the terrorist threat against the ingroup raises the support for the retributive procedures through the dehumanization of the outgroup. Study 2 (N = 304) analyzed how the mediating role of dehumanization in the relationship between terrorist threat and support for retributive justice is moderated by right‐wing authoritarianism (RWA). In addition, the study aimed to verify if the dehumanization of outgroup and RWA could explain the relationship between terrorist threat and discrimination of Muslim immigrants. The results indicated that adherence to RWA favors dehumanization of the outgroup and, consecutively, the discrimination, operationalized as support for the use of retributive justice. The adherence to RWA has been identified as the mechanism that explains the discrimination against Muslim immigrants.