Infants' Response to Maternal Mirroring in the Still Face and Replay Tasks

Infants' response to maternal mirroring was investigated in 4‐month‐old infants. Mother–infant dyads participated in the still face and replay tasks. Infants were grouped by those whose mothers did and did not mirror their behavior in the interactive phases of the tasks. In the still face task, infants with maternal mirroring showed more attention, smiling, and positive vocalizations across the phases, although both groups of infants demonstrated the still‐face effect with attention and smiling. Infants' social bidding to the mother during the still‐face phase correlated with mothers' mirroring behavior. In the replay task, infants with maternal mirroring demonstrated carryover effects with smiling; infants without maternal mirroring showed no awareness of change in their mothers' behavior. In both the still face and replay tasks, infants with maternal mirroring were more engaged with their mothers. Results suggest that maternal mirroring of infants' behavior affects infants' detection of, and response to, reciprocal interaction.     

Effects of Maternal Responsiveness on Infant Responsiveness and Behavior in the Still‐Face Task

The effects of maternal responsiveness on infant responsiveness and behavior in the Still‐Face Task were longitudinally examined through infants' first 3 months. Maternal vocal responsiveness and infant vocal and smiling responsiveness significantly increased when infants were 2 months of age. Mothers showed continuity of individual differences in vocal responsiveness from the infants' newborn period. Maternal responsiveness predicted infant responsiveness within and across sessions. Compared with infants with low‐responsive mothers, infants with high‐responsive mothers were more attentive and affectively engaged during the Still‐Face Task from 1 month of age. Infants with high‐responsive mothers discriminated between the task phases with their smiling at 1 month, a month before infants with low‐responsive mothers did so. Infants in both groups discriminated between the phases with their attention and nondistress vocalizations throughout their first 3 months. Results suggest that maternal responsiveness influences infant responsiveness and facilitates infants' engagement and expectations for social interaction.     

Peek‐a‐What? Infants’ Response to the Still‐Face Task After Normal and Interrupted Peek‐a‐Boo

Infants’ sensitivity to the vitality or tension envelope within dyadic social exchanges was investigated by examining their responses following normal and interrupted games of peek‐a‐boo embedded in a Still‐Face Task. Infants 5–6 months old engaged in two modified Still‐Face Tasks with their mothers. In one task, the initial interaction ended with a sequence of normal peek‐a‐boos that included tension build‐up, peak, and release. In the other task, the initial interaction was followed by a sequence of peek‐a‐boos that ended with an interrupted peek‐a‐boo in which the build‐up was followed directly by the still face. Infants showed the still‐face effect with their attention and smiling when the still face followed the normal peek‐a‐boo sequence, but only with smiling when the still face followed the sequence with the interrupted peek‐a‐boo. Infants’ social bidding to their mothers in the still‐face phase was greater following the interrupted peek‐a‐boo sequence. When social exchanges are interrupted before the closure of the vitality envelope, infants respond with more attention vigilance and social bidding, demonstrating their awareness of the structure of social exchanges.     

The Relation between Mothers' Mirroring of Infants' Behavior and Maternal Mind‐Mindedness

Maternal mind‐mindedness, which is a measure of maternal mentalization involving mothers' speech, was examined as a predictor of mothers' mirroring of infant behavior during interaction. Five‐month‐old infants and their mothers engaged in a Still‐Face Task in which the mother's mirroring of the infant's behavior was assessed. After the task, the mother was shown a video of her infant in the task and asked to comment on what was happening for her infant; her comments were assessed for mind‐mindedness. Maternal mind‐mindedness when mothers were asked to reflect upon what was happening for their infants during the task predicted mothers' mirroring behaviors while engaged with their infants in the task. Maternal mirroring behavior may be a manifestation of maternal mentalization that is salient to infants.     

Maternal Mental State Language and Preschool Children's Attachment Security: Relation to Children's Mental State Language and Expressions of Emotional Understanding

Mothers’ mental state language in conversation with their preschool children, and children's preschool attachment security were examined for their effects on children's mental state language and expressions of emotional understanding in their conversation. Children discussed an emotionally salient event with their mothers and then relayed the event to a stranger. Compared to mothers of insecurely attached children, mothers of securely attached children used more mental state language and had children who used more mental state language with both mother and stranger, and who expressed more emotional understanding in the mother–child conversation. Maternal mental state language and attachment security made shared contributions to children's mental state language with their mothers. Maternal mental state language accounted for the effects of attachment security on children's expressions of emotional understanding in the mother–child conversation. Mothers’ mental state language to their children may enhance secure attachment and foster children's understanding of mental states in self and others.     

Legitimation, Geographical Scale, and Organizational Density: Regional Patterns of Foundings of American Automobile Producers, 1885–1981

Do organizational processes of legitimation and competition operate within different boundaries corresponding to different geographical levels of analysis? Following Hannan et al. (1995), this analysis explores the possibility that legitimation operates on a broader geographical scale (less constrained by political and physical barriers) than does competition. We test the argument by examining founding rates of American automobile producers from 1885 to 1981, within the framework of density-dependent modeling. Our findings suggest that within the United States, legitimation operated on a national scale while competition proceeded primarily on a regional level. Comparison with automobile producer populations in Europe yields differences in application and interpretation of the theory.