Previous studies have insufficiently explored the influence of task and interpersonal interdependence on synchronous cooperation behavior. To address this gap, this study utilized fNIRS hyperscanning technique to investigate the behavioral and neural mechanisms within both friend and stranger dyads engaging in various levels of interdependent…

Supports the hypothesis that temperamentally fussier 5- to 9-month-old infants are more fearful and less friendly toward strangers than are more easygoing infants of the same age. (MP)

Postcards containing a message either favorable or unfavorable for the recipient, were "lost" in the public transportation systems of Paris, Madrid, London, Geneva, and Frankfurt. More postcards were returned when the message was favorable but only in high importance conditions. This pattern did not occur in Madrid. (Author/BEF)

The responses of 18 Down's syndrome infants in a modified "strange" situation were recorded. The results indicated that these infants were aware of the exits and entrances of both mother and stranger. (Author)

This study applied Meehl's taxometric techniques for distinguishing latent types from late continua to Strange Situation data on 1,139 fifteen-month-olds from the NICHD Study of Early Child Care. Results indicated that variation in attachment patterns was largely continuous, not categorical. Implications of dimensional models for individual…

Discusses observations of sets of infant twins, aged 6 to 24 months, as they interacted with one another and with an unfamiliar peer. Assesses quality of infant-mother attachment. Finds twins are more likely to react with one another than with a peer. Results are discussed in relation to early peer relationships and attachment. (Author/RWB)

Advocates renewed efforts toward assessing attachment on a single continuum of emotional security. Contends that theory is essential to guide attachment assessment and that the constructs of secure base and emotional security provide the needed conceptual foundation. Addresses challenges to the scoring of attachment on a security continuum.…

Relationships between day care and attachment were assessed with alternative procedures: (1) hypothesized normal patterns of attachment were tested naturalistically in day-care centers; (2) day-care and home-reared children were compared in a laboratory setting. (Author/MP)

Highlights usefulness of the categorical approach to measuring infant attachment by reviewing some major advances in the field that have been fostered by that approach. Advances include identification of the disorganized attachment group, development of the concept of conditional behavior strategies, creation of systems for coding attachment…

Ainsworth's system of classifying attachment patterns will not be easily displaced primarily because of difficulties involved in a dimensional approach. Problems include the number of dimensions involved, need to develop reliable scales, and need to describe how behavior changes across age and in the Strange Situation. Only when an alternative…

Examines the strange-situation procedure among Japanese mother-infant pairs and analyzes their behavior by comparing them with the data reported in the book by M.S. Ainsworth and others. (HOD)

Focuses on three questions related to attachment theory: whether it requires distinct patterns of attachment, how taxonomic analysis contributes to understanding individual differences in attachment security, and whether attachment theorists are asking the right questions. Asserts that attachment theory is indifferent to the structure of…

Discusses four questions concerning commentaries on the taxometric analysis of Strange Situation behavior related to: (1) whether the categorical model of attachment facilitates theoretical and empirical innovations; (2) whether and how a continuum of security fits into the two-dimensional model; (3) the role of types and dimensions in…