Visual experience is not necessary for efficient survey spatial cognition: evidence from blindness

This study investigated whether the lack of visual experience affects the ability to create spatial inferential representations of the survey type. We compared the performance of persons with congenital blindness and that of blindfolded sighted persons on four survey representation-based tasks (Experiment 1). Results showed that persons with blindness performed better than blindfolded sighted controls. We repeated the same tests introducing a third group of persons with late blindness (Experiment 2). This last group performed better than blindfolded sighted participants, whereas differences between participants with late and congenital blindness were nonsignificant. The present findings are compatible with results of other studies, which found that when visual perception is lacking, skill in gathering environmental spatial information provided by nonvisual modalities may contribute to a proper spatial encoding. It is concluded that, although it cannot be asserted that total lack of visual experience incurs no cost, our findings are further evidence that visual experience is not a necessary condition for the development of spatial inferential complex representations.     

Proactive interference effects on sentence production

Proactive interference refers to recall difficulties caused by prior similar memory-related processing. Information-processing approaches to sentence production predict that retrievability affects sentence form: Speakers may word sentences so that material that is difficult to retrieve is spoken later. In this experiment, speakers produced sentence structures that could include an optionalthat, thereby delaying the mention of a subsequent noun phrase. This subsequent noun phrase was either (1) conceptually similar to three previous noun phrases in the same sentence, leading to greater proactive interference, or (2) conceptually dissimilar, leading to less proactive interference. Speakers produced morethats (and were more disfluencies) before conceptually similar noun phrases, suggesting that retrieval difficulties during sentence production affect the syntactic structures of sentences that speakers produce.     

The performance of left-handed participants on a preferential reaching test

Previous research in our laboratory has examined the distribution of preferred hand (PH) reaches in working space with right-handed participants. In one study, we examined the effects of tool position and task demands on the frequency of PH reaches with right-handers (Mamolo, Roy, Bryden, & Rohr, 2004). We found that PH reaches were at a maximum within ipsilateral space, and predominated within contralateral space. This was mediated by the task demands, as shown by an increased frequency of PH reaches for the more skill demanding tasks. In the current study, we tested left-handed participants on the same procedure. Five different tools were placed in an array in front of the participant, who was required to reach for, and perform one of three tasks with the tool: Lift the tool; lift and Pantomime its use; or lift and Use the tool on its corresponding object. The results showed that PH reaches were at a maximum within ipsilateral space for all three tasks. Significantly fewer PH reaches were made for tools in contralateral space. In particular, almost no PH reaches were made for the Lift task at the most extreme contralateral position. This indicates the willingness of left-handers to use their non-preferred (i.e., right) hand. One possible explanation supported by these results is that left-handers have adapted to an environment designed for right-handers.     

Coping attitudes, sources, and practices among Black and Latino college students

We investigated 130 Black and Latino college students regarding their concerns, attitudes toward professional counseling, sources of support, and coping activities. We found that the Black and Latino cultural emphasis on interdependence influenced attitudes toward using professional resources such as a counselor. We also found a significant two-way interaction between gender and race for attitudes toward professional counseling: Black males had less favorable attitudes in comparison to Black females, while Latino males had more favorable attitudes than did Latino females. Both Black and Latino college students had favorable attitudes toward informal support networks. Differences between Black and Latino college students were found for reported concerns and coping sources. Implications for counseling theory, practice, and research are discussed.     

Self-reported reflective functioning and father–child interactions in a sample of fathers who have used intimate partner violence

Reflective functioning (RF) has been found to be associated with mother–child interactions, but less is known about the association of fathers’ self and child-focused RF and father–child relationships.  Fathers who have histories of intimate partner violence (IPV) are known to have poor RF, which may impact their father–child interactions.  The current study was designed to examine how types of RF are associated with father–child relationships.  Pretreatment assessments and recorded, coded father–child play interactions were used to examine associations among fathers’ history of adverse childhood experiences (ACES), RF and coded father-child play interactions in a sample of 47 fathers with a history of IPV use in the last 6 months with their coparent.  Fathers’ ACES and their child's mental states (CM) were associated with father-child dyadic play interactions.  Fathers with greater ACES and higher scores on CM had the most dyadic tension and constriction during play interactions.  Those with high ACES but low CM had scores similar to those with low ACES and low CM.  These results indicate that fathers who have used IPV and have a history of significant adversity may benefit from interventions to increase their child-focused RF and further improve their interactions with their children.     

A path-analytic approach to the relations between parental traits and acceptance and adolescent adjustment

A path-analytic model was employed to examine relations between parent-reported instrumental and expressive traits, child-reported parental acceptance, and adolescent self-esteem and self-consciousness. Analyses were run separately for each parent-child dyad. It was predicted that any relations between parental traits and child adjustment would be mediated by parental acceptance, especially for expressive traits. This prediction was confirmed for families with daughters. The findings suggest, for the daughter dyads, that parents with expressive traits are more likely to communicate acceptance which, in turn, fosters child adjustment. Of the total variance accounted for in the child adjustment indices, most was due to the contribution of parental acceptance to the model. A comparison of these results with those of previous studies suggests that relations between parental traits and the other variables in the path model are less dramatic when parents' report of their own personality characteristics are employed than when child report is employed. Future research may be improved by serious consideration of mediating variables rather than examining relations between distally-related parent and child variables.The research reported here was supported by Father Flanagan's Boys Home, Inc., by a grant from the John D. and Catherine T. MacArthur Foundation, Family Relations in Early Adolescence, and by a Graduate School Research Fellowship awarded to the senior author from Virginia Commonwealth University. The authors are grateful to Karl Kelley for his statistical advice.     

Two-group classification in latent trait theory: Scores with monotone likelihood ratio

This paper deals with two-group classification when a unidimensional latent trait,, is appropriate for explaining the data,X. It is shown that ifX has monotone likelihood ratio then optimal allocation rules can be based on its magnitude when allocation must be made to one of two groups related to. These groups may relate to probabilistically via a non-decreasing functionp(), or may be defined by all subjects above or below a selected value on.In the case where the data arise from dichotomous items, then only the assumption that the items have nondecreasing item characteristic functions is enough to ensure that the unweighted sum of responses (the number-right score or raw score) possesses this fundamental monotone likelihood ratio property.     

Keeping Your Distance: Group Membership,Personal Space,and Requests for Small Favors1

The effects of group membership and interpersonal distance on interpersonal anxiety and compliance with a small request were explored. In a field experiment, people seated alone in the public eating area or a shopping mall were approached by one of two female confederates: an in-group member or an out-group member. Three different interpersonal distances were assumed by the confederates: near, medium, and far. The “medium” distance was the normative distance for interactions between strangers in the experimental situation. Although the out-group confederate aroused greater anxiety and obtained less compliance than the in-group confederate overall, these differences completely disappeared in the far-distance condition. It is suggested that one reason why out-group members are less likely to elicit compliance with a small request is that they arouse interpersonal anxiety on the part of potential helpers. The results of the present experiment indicate that this anxiety can be reduced (and compliance thereby increased) if the out-group member assumes a somewhat greater distance than is normally deemed appropriate for interactions between strangers.     

Sequences of staff-child interactions on a psychiatric inpatient unit

Six psychiatry inpatients were observed during mealtimes to determine and evaluate staff intervention techniques. To extend and further elaborate the findings of a previous work (Pines, Kupst, Natta, & Schulman, 1985), staff behaviors (positive, punitive, isolating, and neutral) were investigated for their potential relationship to subsequent child behaviors (positive, negative, and inactive) via a lag sequential analytic approach. Staff punitive and isolating behaviors tended to be associated with significant increases in the likelihood of subsequent child negative behaviors and with significant decreases in child positive behaviors. Staff positive behaviors tended not to be related to a subsequent increase or decrease in any of the coded child behaviors. Findings demonstrate the utility of assessing conditional probabilities of sequences of staff-child behaviors in psychiatric inpatients.     

Semantic and formational clustering in deaf and hearing subjects’ free recall of signs

To investigate whether formational properties of sign language are used spontaneously to organize long-term memory, 16 deaf college students were given a free recall task with items that could be categorized either by shared semantic category or by shared sign language hand shape. Both presentation and response modes (signed or written) were varied between subjects. Analyses revealed no effects of mode on trials to criterion or number of items recalled at 1 week. The clustering that occurred was exclusively semantic, with significantly higher clustering scores during acquisition trials in subjects required to sign their responses. In Experiment 2, formational clustering was encouraged by including formational similarity as the only experimenter-defined basis of categorization, by increasing formational similarity within categories, and by testing only subjects with high signing skills. Input and output modes were again varied between subjects. Subjects were deaf college students with deaf parents (n = 10) or hearing parents (n = 16), and hearing adults with deaf parents (n = 8). Again, spontaneous clustering by formational similarity was extremely low. In only one case— deaf subjects with hearing parents given signed input—did formational clustering increase significantly across the eight acquisition trials. After the categorical nature of the list was explained to subjects at a 1-week retention session, all groups clustered output by formational categories. Apparently, fluent signers do have knowledge of the formational structure of signs, but do not spontaneously use this knowledge as a basis of mnemonic organization in long-term memory.