Repetition priming of face recognition

Three experiments investigating the priming of the recognition of familiar faces are reported. In Experiment 1, recognizing the face of a celebrity in an “Is this face familiar?” task was primed by exposure several minutes earlier to a different photograph of the same person, but not by exposure to the person's written name (a partial replication of Bruce and Valentine, 1985). In Experiment 2, recognizing the face of a personal acquaintance was again primed by recognizing a different photograph of their face, but not by recognizing the acquaintance from that person's body shape, clothes etc. Experiment 3 showed that maximum repetition priming is obtained from prior exposure to an identical photograph of a famous face, less from a similar photograph, and least (but still significant) from a dissimilar photograph.

We argue that repetition priming is a function of the degree of physical similarity between two stimuli and that lack of priming between different stimulus types (e.g., written names and faces, or bodies and faces) may be attributable to lack of physical similarity between prime and test stimuli. Repetition priming effects may be best explained by some form of “instance-based” model such as that proposed by McClelland and Rumelhart (1985).     

Access to identity-specific semantic codes from familiar faces

Information codes that can specify the surface form of a face are contrasted with semantic codes describing the properties of the person to whom the face belongs. Identity-specific semantic codes that specify characteristics of familiar people based on personal knowledge are in turn contrasted with the visually derived semantic codes and expression codes that can be derived even from unfamiliar faces. The idea that familiarity decisions (i.e., categorizing faces as belonging to known or unknown people) can be based on surface form, whereas certain types of semantic decision demand additional access to identity-specific semantic codes was investigated in four experiments. Experiments 1 and 3 showed that decisions based on identity-specific semantic codes (semantic decisions) usually take longer than decisions that do not demand access to an identity-specific semantic code (familiarity decisions). Experiment 2 showed that the use of familiar faces drawn from consistent or mixed categories affected reaction times for semantic decisions but not for familiarity decisions. Experiment 4 showed that semantic decisions to faces are taken more quickly (primed) when the faces have been recently seen, whereas there is no differential effect on semantic decisions to faces from previous semantic decisions involving the same people's names. These findings are consistent with the view that identity-specific semantic codes are accessed via face recognition units, and that outputs from face recognition units (which respond to the face's surface form) can be used as the basis for familiarity decisions.     

Known risk factors for violence predict 12-month-old infants' aggressiveness with peers

This study tested the hypothesis that 12-month-old infants' use of force against peers is associated with known risk factors for violence. We conducted a prospective longitudinal study, which included laboratory observations of firstborn British infants (N = 271) during simulated birthday parties. No gender differences in aggressiveness were observed. The infants' observed aggressiveness was significantly correlated with mothers' mood disorder during pregnancy and with mothers' history of conduct problems. Infants' observed aggressiveness was correlated with parents' ratings of infants' anger and aggression, which were also predicted by mothers' mood disorder and history of conduct problems. Our findings indicate that infants at risk for serious aggression can already be identified when the motor ability to use physical force first enters the human repertoire.     

Searching under the streetlight?: Age biases in the personal and family relationships literature

Two studies addressing age biases in research on family and social relationships are presented. Study 1 involved a content analysis of nearly 1,000 empirical studies published in six major journals from 1994 to 1999. Studies in these journals generally were limited to samples of adults under the age of 45, though nearly one third of the studies failed to include information about the ages of adult participants. Most research focused on marital ties, romantic partnerships, or relationships between parents and young children. Study 2 (N = 186) assessed beliefs about the importance of various relationships to adults of different ages. Researchers who study relationships (n = 71), adults with advanced degrees in other fields (n = 57), and less–educated adults (n = 58) rated the importance of various social ties to themselves and to adults of different ages. In general, participants agreed that adults of different ages value different social ties. Less–educated individuals rated many social ties as more important than did researchers who study relationships, however. Age biases in sampling and the types of relationships that receive research attention are discussed.     

Letters to the editor

Pastoral Psychology -     

A Longitudinal Study of Predictors of Housing Stability,Housing Quality,and Mental Health Functioning Among Single Homeless Individuals Staying in Emergency Shelters

The current study examined risk and resilience factors at multiple levels that affect homeless individuals' ability to exit homelessness and achieve housing stability. It also examined the relationship between housing status, housing quality and mental health functioning. The methodology is a longitudinal study of single homeless individuals staying in emergency shelters in a medium‐sized Canadian city who were followed for a 2 year period. Data were collected from participants at a baseline interview when they were homeless and at a 2‐year follow‐up. There were 329 participants interviewed at baseline and 197 (59.9%) participants interviewed at follow‐up. Results from a structural equation modelling analysis found that having interpersonal and community resources were predictive of achieving housing stability. Specifically, having a larger social support network, access to subsidized housing, and greater income was related to achieving housing stability. On the other hand, having a substance use problem was a risk factor associated with a failure to achieving housing stability. Being female, feeling personally empowered, having housing that is perceived of being of higher quality were directly predictive of mental health functioning at follow‐up. Findings are discussed in the context of previous research and their policy implications.     

Contextualized self-representations in adulthood

Theorizing has focused on individuals' self-representations as a psychological resource for coping with life stress and developmental challenges in adulthood. Many of the prominent theories have conceptualized self-representations with regard to specific social contexts (e.g., role-specific self-representations) and have examined specific structural organizations of the self-concept with regard to psychological adjustment. This article describes research on the associations between self-concept structures and psychological well-being in adulthood. Specific emphasis is given to the feature of self-concept differentiation (SCD). Most research suggests that a high level of SCD tends to indicate self-fragmentation and tends to be associated with poorer adjustment and psychological well-being. Findings from a daily diary study with adults of all ages are reported showing that different levels of SCD were in a consistent and meaningful way related to the daily endorsement of positive and negative self-attributes. Daily self-representations, in turn, were significantly related to individuals' level of daily negative affect and to intra-individual variation in negative affect. These findings suggest that SCD may exert its effect on adjustment and psychological well-being through specific ways of processing self-related information.