False belief understanding in deaf children: what are the difficulties?

Children with cochlear implants (CIs) demonstrate proficiency in verbal-story elicited-response (-ER) false-belief tasks, such as the Sally & Ann task, at a similar age as typically developing hearing children. However, they face challenges in non-verbal spontaneous-response (NV-SR) false-belief tasks, measured via looking times, which hearing infants typically pass by around 2 years of age, or earlier. The purpose of the present study was to examine whether these difficulties remain in a non-verbal-story elicited-response (NVS-ER) false-belief task, in which children are offered the opportunity to provide an elicited response to a non-verbal-story task.

The violation-of-expectation paradigm: A conceptual overview.

For over 35 years, the violation-of-expectation paradigm has been used to study the development of expectations in the first 3 years of life. A wide range of expectations has been examined, including physical, psychological, sociomoral, biological, numerical, statistical, probabilistic, and linguistic expectations. Surprisingly, despite the paradigm's widespread use and the many seminal findings it has contributed to psychological science, so far no one has tried to provide a detailed and in-depth conceptual overview of the paradigm.

Number sense at 12 months predicts 4-year-olds' maths skills.

Preverbal infants spontaneously represent the number of objects in collections. Is this 'sense of number' (also referred to as Approximate Number System, ANS) part of the cognitive foundations of mathematical skills? Multiple studies reported a correlation between the ANS and mathematical achievement in children. However, some have suggested that such correlation might be mediated by general-purpose inhibitory skills.

Intention-based evaluations of distributive actions by 4-month-olds.

Four-month-olds' ability to consider the intentions of agents performing distributive actions was investigated in four experiments, using the Violation of Expectation paradigm (VoE) (Experiments 1-3) and the Preferential Looking paradigm (Experiment 4). In Experiment 1, infants were presented with two events showing two types of failed attempts to perform a distribution. In an attempt to distribute fairly, the distributor first tried to reach one of the recipients to deliver an apple, he failed, and then attempted to reach the other recipient to deliver a second apple and also failed.

Preverbal infants' reactions to third-party punishments and rewards delivered toward fair and unfair agents.

Rewarding individuals who distribute resources fairly and punishing those who distribute resources unfairly may be very important actions for fostering cooperation. This study investigated whether 9-month-olds have some expectations concerning punishments and rewards that follow distributive actions. Infants were shown simple animations and were tested using the violation-of-expectation paradigm.

Infants' preferences for approachers over repulsers shift between 4 and 8 months of age.

Despite its adaptive value for social life, the emergence and the development of the ability to detect agents that cause aversive interactions and distinguish them from potentially affiliative agents (approachers) has not been investigated. We presented infants with a simple interaction involving two agents: one of them (the "repulser") moved toward and pushed the other (the "approacher") which reacted by simply moving toward the repulser without contacting it. We found that 8-month-olds (N = 28) looked longer at the approacher than at the repulser (Experiment 1), whereas 4-month-olds (N = 30) exhibited no preference (Experiment 2).

Do children selectively trust leaders and prosocial agents in an economic exchange?

Most cooperative interactions involve interpersonal trust and the expectation of mutual reciprocation. Thus, understanding when and how humans acquire interpersonal trust can help unveil the origins and development of children's cooperative behavior. Here, we investigated whether prior sociomoral information about trading partners modulates the choice of preschool (4-5 years) and school-age children (7-8 years) to share their own goods in a child-friendly version of the trust game.

Toddlers' expectations of third-party punishments and rewards following an act of aggression.

Rewarding someone who defends the victim of an unjust aggression and punishing someone who chose not to defend her may be very important acts of reciprocation in social life. This study investigates whether 21-month-olds have some expectations concerning such punishing and rewarding actions. Infants were shown simple puppet shows and were tested using the violation-of-expectation paradigm.

Ad-hoc and scalar implicatures in children with autism spectrum disorder.

Background: Previous studies found that people with Autism Spectrum Disorder (ASD) perform well on pragmatic inference tests that require the use of the linguistic scale . The present study extends previous research by testing two types of implicature: scalar implicatures, based on lexical scales, and ad-hoc implicatures, based on contextual scales.

Methods: We tested 26 children with ASD aged 4-10 years (mean age 7.

Impaired large numerosity estimation and intact subitizing in developmental dyscalculia.

It is believed that the approximate estimation of large sets and the exact quantification of small sets (subitizing) are supported by two different systems, the Approximate Number System (ANS) and Object Tracking System (OTS), respectively. It is a current matter of debate whether they are both impaired in developmental dyscalculia (DD), a specific learning disability in symbolic number processing and calculation. Here we tackled this question by asking 32 DD children and 32 controls to perform a series of tasks on visually presented sets, including exact enumeration of small sets as well as comparison of large, uncountable sets.

Scalar and ad-hoc pragmatic inferences in children: guess which one is easier.

Several studies investigated preschoolers' ability to compute scalar and ad-hoc implicatures, but only one compared children's performance with both kinds of implicature with the same task, a picture selection task. In Experiment 1 (N = 58, age: 4;2-6;0), we first show that the truth value judgment task, traditionally employed to investigate children's pragmatic ability, prompts a rate of pragmatic responses comparable to the picture selection task. In Experiment 2 (N = 141, age: 3;8-9;2) we used the picture selection task to compare scalar and ad-hoc implicatures and linked the ability to derive these implicatures to some cognitive and linguistic measures.

Infants' use of motion cues in object individuation processes.

We investigated 10-month-old infants' and adults' numerical expectations in scenarios where information on self-motion and static object features may give rise to numerically incongruent representations. A red circle or a blue box with yellow stripes appeared on the left side of a screen, moved autonomously sideways and then moved back behind the screen. Next, on the opposite side, an identical object was first brought in view by a hand and then pushed back behind the screen (Experiments 1 and 2).

On the domain specificity of the mechanisms underpinning spontaneous anticipatory looks in false-belief tasks.

Many studies proposed that infants' and adults' looking behavior suggest a spontaneous and implicit ability to reason about others' beliefs. It has been argued, however, that these successes are false positives due to domain-general processes, such as retroactive interference. In this study, we investigated the domain specificity of mechanisms underpinning participants' looking behavior by manipulating the dynamic cues in the event stimuli.

Conceptual continuity in the development of intent-based moral judgment.

When asked to say whether an agent is morally good or bad, younger preschoolers tend to rely more on the outcomes of agents' actions than on agents' intentions, whereas older children show the opposite bias. Children aged 3 to 5 years were examined with a novel task that facilitated the selection and expression of response by means of response generation training. In two experiments, we found that 3-year-olds succeeded in generating intent-based judgments when the task was simplified, whereas older preschoolers succeeded also without the help of response generation training.

First steps toward an understanding of procedural fairness.

In four experiments, we tested whether 20-month-old infants are sensitive to violations of procedural impartiality. Participants were shown videos in which help was provided in two different ways. A main character provided help to two other agents either impartially, by helping them at the same time, or in a biased way, by helping one agent almost immediately while the other after a longer delay.

Lexical stress contrastivity in Italian children with autism spectrum disorders: an exploratory acoustic study.

We investigated production of lexical stress in children with and without autism spectrum disorders (ASD), all monolingual Italian speakers. The mean age of the 16 autistic children was 5.73 years and the mean age of the 16 typically developing children was 4.

Brief Report: Young Children with Autism Can Generate Intent-Based Moral Judgments.

Past research suggested that, due to difficulties in mentalistic reasoning, individuals with autism tend to base their moral judgments on the outcome of agents' actions rather than on agents' intentions. In a novel task, aimed at reducing the processing demands required to represent intentions and generate a judgment, autistic children were presented with agents that accidentally harmed or attempted but failed to harm others and were asked to judge those agents. Most of the times, children blamed the character who attempted to harm and exculpated the accidental wrongdoer, suggesting that they generated intent-based moral judgments.

Do Infants Attribute Moral Traits? Fourteen-Month-Olds' Expectations of Fairness Are Affected by Agents' Antisocial Actions.

We investigated whether and how infants link the domains of harm, help and fairness. Fourteen-month-old infants were familiarized with a character that either helped or hindered another agent's attempts to reach the top of a hill. Then, in the test phase they saw the helper or the hinderer carrying out an equal or an unequal distribution toward two identical recipients.

Many moral buttons or just one? Evidence from emotional facial expressions.

We investigated whether moral violations involving harm selectively elicit anger, whereas purity violations selectively elicit disgust, as predicted by the Moral Foundations Theory (MFT). We analysed participants' spontaneous facial expressions as they listened to scenarios depicting moral violations of harm and purity. As predicted by MFT, anger reactions were elicited more frequently by harmful than by impure actions.

Toddlers map the word 'good' to helping agents, but not to fair distributors.

Infants begin to understand some of the meanings of the adjective good at around thirteen months, but it is not clear when they start to map it to concepts in the moral domain. We investigated infants' and toddlers' knowledge of good in the domains of help and fairness. Participants at 20 and 30 months were shown computer animations involving helpful and hindering agents, or agents who performed fair or unfair distributions, and were asked to "pick the good one".