Training of 7-month-old infants’ manual object exploration skills: Effects of active and observational experience

In the present study, a fine motor training was developed and evaluated in which infants were trained to manually explore objects in an advanced manner. Fifty 7-month-old infants were randomly assigned to three different training conditions: (1) to an active manual exploration training, in which they learned to explore objects efficiently, (2) to an observational manual exploration training, in which they observed how an adult performed sophisticated actions on objects, or (3) to a control group receiving no training. The results impressively indicate that infants with a low level of object exploration skill prior to the training showed the most training effects as compared to infants with proficient object exploratory actions. Interestingly, this differential training effect was true for both the active and observational training, highlighting the role of social learning in infancy. Importantly, our study shows for the first time the impact of normal individual variation in infants’ manual object exploration skills on the effects of a fine motor training.     

Developmental Origins of Biological Explanations: The case of infants’ internal property bias

People’s explanations about the biological world are heavily biased toward internal, non-obvious properties. Adults and children as young as 5 years of age find internal properties more causally central than external features for explaining general biological processes and category membership. In this paper, we describe how this ‘internal property bias’ may be grounded in two different developmental precursors observed in studies with infants: (1) an early understanding of biological agency that is apparent in infants’ reasoning about animals, and (2) the acquisition of kind-based representations that distinguish between essential and accidental properties, spanning from animals to artifacts. We argue that these precursors may support the progressive construction of the notion of biological kinds and explanations during childhood. Shortly after their first year of life, infants seem to represent the internal properties of animates as more central and identity-determining that external properties. Over time, this skeletal notion of biological kinds is integrated into diverse explanations about kind membership and biological processes, with an increasingly better understanding of the causal role of internal properties.     

The origins of belief representation: Monkeys fail to automatically represent others’ beliefs

Young infants’ successful performance on false belief tasks has led several researchers to argue that there may be a core knowledge system for representing the beliefs of other agents, emerging early in human development and constraining automatic belief processing into adulthood. One way to investigate this purported core belief representation system is to examine whether non-human primates share such a system. Although non-human primates have historically performed poorly on false belief tasks that require executive function capacities, little work has explored how primates perform on more automatic measures of belief processing. To get at this issue, we modified Kovács et al. (2010)’s test of automatic belief representation to examine whether one non-human primate species—the rhesus macaque (Macaca mulatta)—is automatically influenced by another agent’s beliefs when tracking an object’s location. Monkeys saw an event in which a human agent watched an apple move back and forth between two boxes and an outcome in which one box was revealed to be empty. By occluding segments of the apple’s movement from either the monkey or the agent, we manipulated both the monkeys’ belief (true or false) and agent’s belief (true or false) about the final location of the apple. We found that monkeys looked longer at events that violated their own beliefs than at events that were consistent with their beliefs. In contrast to human infants, however, monkeys’ expectations were not influenced by another agent’s beliefs, suggesting that belief representation may be an aspect of core knowledge unique to humans.     

The role of action effects in infants’ action control

In adults, the selection and the planning of actions are influenced by the anticipation of desired action effects. However, the role of action effects for action control in infants is still an unresolved issue. One important prerequisite for infants action control is that infants are able to relate certain movements to certain effects. To test this assumption, it was investigated how infants action control is affected by action effects. By applying an imitation paradigm, we studied 12- and 18-month-old infants who first observed an adult experimenter demonstrating a three-step action sequence on a toy bear. In three experimental groups, the second action step, the third action step, or no action step elicited an arbitrary sound as an additional acoustic action effect. It was coded how often each of the target actions was performed by the infant in a subsequent 90-s test phase. As predicted, the frequency of the infants target action varied depending on which action step elicited the action effect. In both age groups, the target action that was combined with an acoustical effect was not only produced more often but also occurred with lower latency and was in most cases the first target action shown by the infants. These results are interpreted as evidence of the important role of action effects in infants action control.     

Look up to the body: An eye-tracking investigation of 7-months-old infants’ visual exploration of emotional body expressions

The human body is an important source of information to infer a person’s emotional state. Research with adult observers indicate that the posture of the torso, arms and hands provide important perceptual cues for recognising anger, fear and happy expressions. Much less is known about whether infants process body regions differently for different body expressions. To address this issue, we used eye tracking to investigate whether infants’ visual exploration patterns differed when viewing body expressions. Forty-eight 7-months-old infants were randomly presented with static images of adult female bodies expressing anger, fear and happiness, as well as an emotionally-neutral posture. Facial cues to emotional state were removed by masking the faces. We measured the proportion of looking time, proportion and number of fixations, and duration of fixations on the head, upper body and lower body regions for the different expressions. We showed that infants explored the upper body more than the lower body. Importantly, infants at this age fixated differently on different body regions depending on the expression of the body posture. In particular, infants spent a larger proportion of their looking times and had longer fixation durations on the upper body for fear relative to the other expressions. These results extend and replicate the information about infant processing of emotional expressions displayed by human bodies, and they support the hypothesis that infants’ visual exploration of human bodies is driven by the upper body.     

The ground is dominant in infants’ perception of relative distance

When making relative distance judgments, adults attend to information provided by the ground surface and generally ignore information provided by ceiling surfaces. In the present study, we asked whether this ground dominance effect is present in infancy. Groups of 5- and 7-month-old infants viewed a display depicting textured ground and ceiling surfaces. Two toys, which were attached to vertical rods, were affixed to the display. The toys/rods were positioned so that one toy was specified as being nearer by the ground surface but farther away by the ceiling surface, while the other toy was specified as being farther away by the ground surface but nearer by the ceiling surface. Under monocular viewing conditions, the infants in both age groups reached preferentially for the toy that was specified as being nearer by the ground surface. This effect was significantly stronger than that observed under binocular viewing conditions. The findings indicate that the infants responded to the distance information provided by the ground surface to a greater extent than to information provided by the ceiling.     

The early ontogeny of infants’ imitation of on screen humans and robots

Traditionally, infants have learned how to interact with objects in their environment through direct observations of adults and peers. In recent decades these models have been available over different media, and this has introduced non-human agents to infants’ learning environments. Humanoid robots are increasingly portrayed as social agents in on screen, but the degree to which infants are capable of observational learning from screen-based robots is unknown. The current study thus investigated how well 1- to 3-year-olds (N = 230) could imitate on-screen robots relative to on-screen and live humans. Participants exhibited an imitation deficit for robots that varied with age. Furthermore, the well-known video deficit did not replicate as expected, and was weak and transient relative to past research. Together, the findings documented here suggest that infants are learning from media in ways that differ from past generations, but that this new learning is nuanced when novel technologies are involved.     

The publication of Salomon Reinach's ‘Orpheus’ and the question of Christian origins

A covert reason for the decline of ritual wailing among Yemenite-Jewish women in Israel is the community's memory of its stay in Yemen as a period of ‘exile’ manifested in dhimmi status. According to respondents’ oral history, Jewish lamentation was exploited by members of the majority Muslim population to compel Jews – mostly men – to wail in honor of Muslim dead. The article makes its main contribution by revealing this historical episode and analyzing the standing of women's lamentation in the context of religio-political tension. The respondents' narrative reveals that although the wailers mitigated the humiliating effects of this spectacle, the appropriation of their community custom impaired Jewish men's gender status and ability to perform religious differentiation. This, coupled with changes caused by their relocation to Israel, has made women's lament the commemoration of a practice that evokes shame among members of this community, abetting its decline in the past decade.     

Manual exploration of objects is related to 7-month-old infants’ visual preference for real objects

The present study examined whether infants’ visual preferences for real objects and pictures are related to their manual object exploration skills. Fifty-nine 7-month-old infants were tested in a preferential looking task with a real object and its pictorial counterpart. All of the infants also participated in a manual object exploration task, in which they freely explored five toy blocks. Results revealed a significant positive relationship between infants’ haptic scan levels in the manual object exploration task and their gaze behavior in the preferential looking task: The higher infants’ haptic scan levels, the longer they looked at real objects compared to pictures. Our findings suggest that the specific exploratory action of haptically scanning an object is associated with infants’ visual preference for real objects over pictures.     

The impact of the home musical environment on infants’ language development

There is strong evidence that musical engagement influences children’s language development but little research has been carried out on the relationship between the home musical environment and language development in infancy. The current study assessed musical exposure at home (including parental singing) and language development in 64 infants (8.5–18 months). Results showed that the home musical environment significantly predicted gesture development. For a subgroup of infants’ below 12 months, both parental singing and overall home musical environment score significantly predicted word comprehension. These findings represent the first demonstration that an enriched musical environment in infancy can promote development of communication skills.     

Prisoners’ competence to die: hunger strike and cognitive competence

Several bioethicists have recently advocated the force-feeding of prisoners, based on the assumption that prisoners have reduced or no autonomy. This assumed lack of autonomy follows from a decrease in cognitive competence, which, in turn, supposedly derives from imprisonment and/or being on hunger strike. In brief, causal links are made between imprisonment or voluntary total fasting (VTF) and mental disorders and between mental disorders and lack of cognitive competence. I engage the bioethicists that support force-feeding by severing both of these causal links. Specifically, I refute the claims that VTF automatically and necessarily causes mental disorders such as depression, and that these mental disorders necessarily or commonly entail cognitive impairment. Instead, I critically review more nuanced approaches to assessing mental competence in hunger strikes, urging that a diagnosis of incompetence be made on a case-by-case basis—a position that is widely shared by the medical community.     

Dropout in looking time studies: The role of infants’ temperament and cognitive developmental status

Dropout of infants in looking time studies sometimes occurs at high rates, raising concerns that the representativeness of the final sample might be reduced in comparison to the originally obtained sample. The current study investigated which infant characteristics play a role in dropout. Infants were presented with a preferential looking task at 6 and 9 months of age. At 9 months of age, an additional habituation task and a subsequent novelty preference task were conducted. In addition, temperament was assessed via the Infant Behavior Questionnaire – Revised (IBQ-R, Gartstein & Rothbart, 2003), and cognitive developmental status was assessed via the Cognitive Scale of the Bayley Scale of Infant and Toddler Development (BSID-III, Bayley, 2006). Dropout was positively related to the IBQ-R temperament scales Distress to Limitations and Approach, and negatively related to the scales Falling Reactivity and Cuddliness. The representativeness of the final sample regarding situation-specific temperament dimensions is affected by dropout. Dropout was not related to cognitive developmental status as measured via the BSID-III, habituation speed and novelty preference. Dropout at 6 months of age was associated with dropout at 9 months of age. We concluded that in looking time studies, the representativeness of the final sample regarding performance-relevant temperament dimensions or cognitive developmental status is not affected by dropout.     

The over‐Negativized conceptualization of deviance: A programmatic exploration

It is the contention of this paper that past and current sociological conceptions of deviance are unduly limited in that they consider only negative conceptualizations of general deviance. The argument is advanced that sociologists are overdue to acknowledge the empirical existence of positive deviance and to incorporate the positive deviance into a broader, more general study of deviance. Since acknowledging positive deviance would highlight the inadequacy of conceptualizations limited to negative deviance only, guidelines for the beginnings of the solution to this problem are suggested. Suggestions are presented for reworking and reevaluating some of the basic definitional statements of (negative) deviance and some of the elemental aspects of the existing deviance paradigms in order to develop a more general field of study.     

The origins of deference: when do people prefer lower status?

Although the desire for high status is considered universal, prior research suggests individuals often opt for lower status positions. Why would anyone favor a position of apparent disadvantage? In 5 studies, we found that the broad construct of status striving can be broken up into two conceptions: one based on rank, the other on respect. While individuals might universally desire high levels of respect, we find that they vary widely in the extent to which they strive for high-status rank, with many individuals opting for middle- or low-status rank. The status rank that individuals preferred depended on their self-perceived value to the group: when they believed they provided less value, they preferred lower status rank. Mediation and moderation analyses suggest that beliefs about others' expectations were the primary driver of these effects. Individuals who believed they provided little value to their group inferred that others expected them to occupy a lower status position. Individuals in turn conformed to these perceived expectations, accepting lower status rank in such settings.     

The origins of modernity: was autonomous speech the critical factor?

Although Homo sapiens emerged in Africa some 170000 years ago, the origins of "modern" behavior, as expressed in technology and art, are attributed to people who migrated out of Africa around 50000 years ago, creating what has been called a human revolution in Europe and Asia. There is recent evidence that a mutation of the FOXP2 gene (forkhead box P2), important for the development of articulate speech, occurred some time within the past 100000 years. This event may have allowed speech to become fully autonomous, so that language no longer depended on a visuomanual component. The consequent freeing of the hands and development of pedagogy may have led to the technological advances that allowed H. sapiens to dominate and eventually replace all other hominids.     

The ‘Blueprint’ framework for career management skills: a critical exploration

This article examines the Blueprint framework for career management skills as it has been revealed across sequential implementations in the USA, Canada and Australia. It is argued that despite its lack of an empirical basis, the framework forms a useful and innovative means through which career theory, practice and policy can be connected. The framework comprises both core elements (learning areas, learning model and levels) and contextual elements (resources, community of practice, service delivery approach and policy connection). Each of these elements is explored.     

The ‘Renaissance of the University’ in the European knowledge society: An exploration of principled and governmental approaches

A ‘renaissance of the university’ in the European knowledge society is regarded today as a necessity. However, there is an ongoing debate about what that renaissance should look like. The aim of this article is to take a closer look at these debates, and in particular, the disputes related to the public role of the (future) university in the European knowledge society. The aim however is not to assess the validity of the arguments of each of the protagonists but to place the discussion within a broader socio-historical context. From a genealogical point of view, and drawing upon the work of Foucault and Hunter, it is possible to distinguish two kinds of milieu, each embodying their own “intellectual technology” and each leading to a specific conception of the public role of the university: firstly the principled milieu (with the persona of the academic as critical intellectual), and secondly the governmental milieu (with the persona of the state official or governmental expert). From this genealogical point of view, I will argue that the modern (research) university was from the very beginning a hybrid institution due to the claims and scopes of both milieus. Furthermore, I will argue that the current discussions reveal the ongoing influence of both milieus and their respective gazes and approaches.