Reliable operant apparatus for fish: Audio stimulus generator, response button, and pellet-dispensing nipple

As part of ongoing research into the ability of koi to categorize complex auditory stimuli, we have had to develop novel apparatus. The stimulus generator presents sound from two CD drives under computer control through a new underwater speaker. The operant manipulandum is a horizontal button that eliminates spurious triggering by water turbulence and problematic response topographies. The button’s design has also been adapted for use by tilapia in an aquacultural food-preference study. The feeder uses a nipple to dispense food pellets reliably under water. In this paper, the apparatus is described in detail. Also discussed are methodological issues related to its design, as well as its usage in a pilot study in which koi learned to discriminate music from silence by using a single manipulandum with food reinforcement.     

Family stress theory: A perspective on pastoral care

This article reviews crisis theory from family stress literature and research from medical sociology to advance a rationale for clinical pastoral care of seriously ill patients and families. It describes Reuben Hill's A,B,C,X crisis model and offers it as a conceptual framework for understanding the psychosocial experiences of families facing illness and the role of pastoral care in the coping process.     

Affective exchanges between young autistic children and their mothers

This study examined autistic children's social behavior, affect, and use of gaze during naturalistic interactions with their mothers. Sixteen autistic children, 30 to 70 months of age, and 16 normal children, matched on receptive language, participated. Children and their mothers were videotaped during three situations: a free-play period, a more structured period during which communicative demand was made on the child, and a face-to-face interaction. In all three situations, autistic and normal children did not differ in the frequency or duration of gaze at mother's face. In the one condition (face-to-face interaction) during which affective expressions were coded, autistic and normal children also were not found to differ significantly in the frequency or duration of smiles displayed, and neither group displayed frowns. However, autistic children were much less likely than normal children to combine their smiles with eye contact in a single act that conveyed communicative intent. Autistic and normal children were not found to differ in the percentages of smiles they displayed to social versus nonsocial events. However, when autistic children's responses to mother's smiles specifically were examined, it was found that they were much less likely to smile in response to mother's smiles than were normal children. Finally, it was found that mothers o f autistic children displayed fewer smiles and were less likely to smile in response to their children's smiles, when compared with mothers o f normal children. These findings suggest that the autistic child's unusual affective behavior may negatively affect the behavior of others.We wish to thank the children and their mothers who participated in this study, and the staff at Division TEACCH at the University of North Carolina at Chapel Hill for their help in recruiting children for the study. Harriet Reingold generously allowed us to videotape the children in her infant observation laboratory at the University of North Carolina, Chapel Hill. Cathy Lord provided videotapes of some of the autistic children and their mothers. Mary Evers assisted in data collection. Kerry Hogan assisted in the coding of data; her help is gratefully acknowledged. The study was supported by a grant from the University of North Carolina at Chapel Hill.     

Therapeutic processes in peer led and professionally led support groups for caregivers

A comparison of peer led and professionally led support groups for caregivers of frail older persons living in the community demonstrates that both types of groups are effective. Findings reveal that it was the opportunity to ventilate pent-up feelings and emotions, the validation of caregiving experiences, the affirmation of coping abilities, the encouragement for continuing to provide care and cope with the situation, the exploration of alternative caregiving arrangements, the mutual support, and the mutual sharing of information about community resources and coping strategies that appeared to be the most helpful therapeutic ingredients of both types of groups. The greater attention to problem solving work and the learning of specific coping skills in the professionally led groups was not reflected in differential outcomes in the two support group conditions.     

A developmental view of therapeutic bonding in the family: treatment of the disconnected family

Data from an ongoing research study have been used to identify a subgroup of families of severely ill, young adults who present formidable treatment challenges to the family therapist. The disconnected family is characterized by disturbances in attachment between one or both parents and the patient. In many cases, disturbances in attachment and caretaking in the family of origin are reported for the parents in these families. Disconnected families that also have intense emotional styles of relating are particularly difficult to treat. A treatment model that focuses on intergenerational attachment issues is described.