Two experiments examined 12- to 13-month-old infants' reactions to noncontingent responding by the parent (Experiment 1, 40 infants) or by an unfamiliar adult (Experiment 2, 40 infants). During the initial play phase, the adult was either reading a book or using his or her mobile phone, resulting in a response delay when the infant would seek the…

We assessed whether the negative association between maternal postpartum depression (PPD) and infants' development of joint attention (gaze following) generalizes from WEIRD (Western, Educated, Industrialized, Rich, and Democratic) to Majority World contexts. The study was conducted in Bhutan (N = 105, M = 278 days, 52% males) but also draws from…

From early in life, infants synchronize with others on a physiological level, a process thought to underlie social connections and group cohesion. This synchronization is seen, for example, when their pupils dilate in response to observing another person with dilated pupils -- known as "pupillary contagion." There is mixed evidence on…

The aim of this review is to identify the behavioural soothing interventions (BSIs) used for reducing infant crying and to determine their effect. Studies had to describe an experimental study addressing infant crying and BSIs in the first six months after birth. Searches were performed in Web of Science, Pubmed, Science Direct, EBSCOhost,…

This study explores the cultural construction of "difficult" temperament in the first 2 years of life, as well as the logistical and thematic continuity across infancy and childhood in what mothers perceive as difficult. It extends earlier work regarding older children in six cultural sites: Italy, the Netherlands, Poland, Spain, Sweden,…

Very early precursors of disrupted social behaviours are significant to understanding the possibility of mitigating or changing behaviours through interventions. Spontaneous play situations between infant and parent in two groups of infants aged 8.5-9 months were observed. First, a large number of videos were analysed to develop an observational…

Saccade latency is widely used across infant psychology to investigate infants' understanding of events. Interpreting particular latency values requires knowledge of standard saccadic RTs, but there is no consensus as to typical values. This study provides standard estimates of infants' (n = 194, ages 9 to 15 months) saccadic RTs under a range of…

Screening studies of a population in primary health care are sparsely reported. The aim was to describe observed atypical behaviours that may be associated with autism spectrum conditions, in a population (n?=?4,329) of infants at eight months. Observations were performed by paediatric nurses. An observational instrument, named SEEK developed for…

A head-mounted camera was used to measure head direction. The camera was mounted to the forehead of 20 6- and 20 12-month-old infants while they watched an object held at 11 horizontal (-80° to + 80°) and 9 vertical (-48° to + 50°) positions. The results showed that the head always moved less than required to be on target. Below 30° in the…

Three laboratory experiments on social referencing examined whether infants' tendencies to look at and use positive information from the experimenter could be interpreted from a perspective of novelty or expertise. In Study 1, novelty was manipulated. Forty-eight 12-month-old infants participated. In a between-subject design, a more novel or a…

In laboratory studies of social referencing, infants as young as 12 months have been reported to prefer looking at the experimenter over the caregiver for clarifying information. From an expertise perspective, such behavior could be interpreted as if the infant seeks information from others and can discriminate between persons who have or do not…