Is sensory processing an issue for infants with colic?

ObjectivesTo determine the association between sensory functioning, sleep, cry/fuss, and feeding behaviors of infants with colic younger than 4 months of age.MethodsDunn’s Infant/Toddler Sensory Profile™ and a modified Barr Baby Day Diary^© were used to assess 44 breastfed infants with colic under four months of age. Colic was defined according to Wessel’s criteria.ResultsThirty-four of the 44 infants with colic (77%) scored as atypical for sensory processing. Of these, 56% scored atypical for sensory processing on quadrant one (Q1) (Low Registration), with 24%, 65%, and 18% scoring as atypical for sensory processing on Q2 (Sensory seeking), Q3 (Sensory sensitivity), and Q4 (Sensation avoiding), respectively. All infants demonstrating sensation avoiding also scored as Low Threshold. A moderate statistically significant correlation was found between sensation seeking and time spent sleeping (r = 0.31; p = 0.04). No other statistically significant associations between infant behaviors and their sensory functioning were demonstrated. Overall, infants demonstrating atypical sensory responses (in any quadrant) slept significantly more than infants demonstrating typical sensory responses (mean difference = −67.8 min/day; 95% CI = −133.6 to −2.1; p = 0.04).ConclusionVery limited associations between infant behaviors and sensory functioning were demonstrated, suggesting that sensory functioning may not be a significant factor in the multifactorial nature of infant colic. Further well-designed studies using validated tools for infants with colic are required to determine whether associations between infant behaviors and sensory functioning exist.     

FATHER–CHILD INTERACTIONS AT 3 MONTHS AND 24 MONTHS: CONTRIBUTIONS TO CHILDREN'S COGNITIVE DEVELOPMENT AT 24 MONTHS

The quality of father–child interactions has become a focus of increasing research in the field of child development. We examined the potential contribution of father–child interactions at both 3 months and 24 months to children's cognitive development at 24 months. Observational measures of father–child interactions at 3 and 24 months were used to assess the quality of fathers’ parenting (n = 192). At 24 months, the Mental Developmental Index (MDI) of the Bayley Scales of Infant Development, Second Edition (N. Bayley, 1993 ) measured cognitive functioning. The association between interactions and cognitive development was examined using multiple linear regression analyses, adjusting for paternal age, education and depression, infant age, and maternal sensitivity. Children whose fathers displayed more withdrawn and depressive behaviors in father–infant interactions at 3 months scored lower on the MDI at 24 months. At 24 months, children whose fathers were more engaged and sensitive as well as those whose fathers were less controlling in their interactions scored higher on the MDI. These findings were independent of the effects of maternal sensitivity. Results indicate that father–child interactions, even from a very young age (i.e., 3 months) may influence children's cognitive development. They highlight the potential significance of interventions to promote positive parenting by fathers and policies that encourage fathers to spend more time with their young children.     

CAREGIVER–CHILD INTERACTION,CAREGIVER TRANSITIONS,AND GROUP SIZE AS MEDIATORS BETWEEN INTERVENTION CONDITION AND ATTACHMENT AND PHYSICAL GROWTH OUTCOMES IN INSTITUTIONALIZED CHILDREN

This report describes a secondary analysis of data from a comprehensive intervention project which included training and structural changes in three Baby Homes in St. Petersburg, Russian Federation. Multiple mediator models were tested according to the R.M. Baron and D.A. Kenny ( 1986 ) causal‐steps approach to examine whether caregiver–child interaction quality, number of caregiver transitions, and group size mediated the effects of the intervention on children's attachment behaviors and physical growth. The study utilized a subsample of 163 children from the original Russian Baby Home project, who were between 11 and 19 months at the time of assessment. Results from comparisons of the training and structural changes versus no intervention conditions are presented. Caregiver–child interaction quality and number of caregiver transitions fully mediated the association between intervention condition and attachment behavior. No other mediation was found. Results suggest that the quality of interaction between caregivers and children in institutional care is of primary importance to children's development, but relationship context may play a less direct mediational role, supporting caregiver–child interactions.     

THE “SCIENTIFIC MIRACLE OF THE QUR’ĀN,” PSEUDOSCIENCE,AND CONSPIRACISM

This article, after tracing a precise classification of the exegetical trend known as i?jāz ?ilmī, summarizes and discusses the criticism leveled at it and examines how the “scientific interpretation” of the Qur’ān is liable to blend with pseudoscience and conspiracy theories to the detriment of a solid harmonization of science and religion and of a genuine appreciation of natural science. Furthermore, the article offers some practical ideas that can be implemented in order to effectively and fairly address i?jāz ?ilmī in the Muslim world.     

Deaf hearing: Implicit discrimination of auditory content in a patient with mixed hearing loss

We describe a patient LS, profoundly deaf in both ears from birth, with underdeveloped superior temporal gyri. Without hearing aids, LS displays no ability to detect sounds below a fixed threshold of 60 dBs, which classifies him as clinically deaf. Under these no-hearing-aid conditions, when presented with a forced-choice paradigm in which he is asked to consciously respond, he is unable to make above-chance judgments about the presence or location of sounds. However, he is able to make above-chance judgments about the content of sounds presented to him under forced-choice conditions. We demonstrated that LS has faint sensations from auditory stimuli, but questionable awareness of auditory content. LS thus has a form of type-2 deaf hearing with respect to auditory content. As in the case of a subject with acquired deafness and deaf hearing reported on a previous occasion, LS’s condition of deaf hearing is akin in some respects to type-2 blindsight. As for the case of type 2 blindsight the case indicates that a form of conscious hearing can arise in the absence of a fully developed auditory cortex.     

Should metacognition be measured by logistic regression?

Are logistic regression slopes suitable to quantify metacognitive sensitivity, i.e. the efficiency with which subjective reports differentiate between correct and incorrect task responses? We analytically show that logistic regression slopes are independent from rating criteria in one specific model of metacognition, which assumes (i) that rating decisions are based on sensory evidence generated independently of the sensory evidence used for primary task responses and (ii) that the distributions of evidence are logistic. Given a hierarchical model of metacognition, logistic regression slopes depend on rating criteria. According to all considered models, regression slopes depend on the primary task criterion. A reanalysis of previous data revealed that massive numbers of trials are required to distinguish between hierarchical and independent models with tolerable accuracy. It is argued that researchers who wish to use logistic regression as measure of metacognitive sensitivity need to control the primary task criterion and rating criteria.     

Reward-priming impacts visual working memory maintenance: Evidence from human electrophysiology

Reward can benefit visual processing of reward-associated objects in a non-strategic way. Recent studies have suggested that such influence extends also to visual working memory (VWM) representations of reward-associated stimuli. However, it is not clear yet which mechanisms underlie the behavioural effects in VWM tasks: reward could directly impact on our ability to maintain representations in VWM or it could influence memory indirectly via priming of attentional selection. To distinguish between these alternatives we measured event-related potential indices of selective attention – the N2pc – and VWM maintenance – the CDA (contralateral delay activity) – while participants completed a VWM task. Results show that reward outcome in one trial caused similarly coloured targets to be strongly represented in VWM in subsequent trials, as expressed in a larger-amplitude CDA This was not preceded by a corresponding effect on attentional selection, in so far as our key manipulation had no impact on the N2pc. In a second experiment, we found that reward priming produced a behavioural benefit that emerged over time, suggesting that the representations of reward-associated items stored in VWM are more resistant to interference and decay. We conclude that when the task stresses VWM maintenance, it is at this representational level that reward will have impact.