Accommodation fatigue and dark focus: The effects of accommodation-free visual work as assessed by two psychophysical methods

Past studies of accommodation fatigue have yielded inconsistent results, partly because they have not used direct measures of accommodation, and partly because they may have been based on a misleading conception of the nature of accommodation. The dual-innervation theory of accommodation suggests that the resting position of accommodation may be neuromuscular rather than just muscular, and that it lies not at optical infinity, as assumed by older conceptions, but at some intermediate position (dark focus). Among the predictions that may be deduced from this theory is that long-term visual work not requiring active accommodation will not induce fatigue. The present study involved continuous measurements of dark focus for 10 young adults over a 3-h period, using the laser optometer with two psychophysical procedures Ibracketing and staircase. Consistent with the prediction, no changes in dark focus were found, in spite of the demanding visual task. Furthermore, it was found that both psychophysical methods yielded essentially identical results. The practical and theoretical implications of these results are discussed, and recommendations are given regarding situations in which each of the psychophysical methods is likely to be most useful.     

Optimally matching support and perceived spousal sensitivity.

Partner sensitivity is an important antecedent of both intimacy (H. T. Reis & P. Shaver, 1988) and attachment (M. D. S. Ainsworth, 1989). On the basis of the optimal matching model of social support (C. E. Cutrona & D. Russell, 1990), support behaviors that "matched" the support goals of the stressed individual were predicted to lead to the perception of partner sensitivity. Predictions were tested with 59 married couples, who engaged in a videotaped self-disclosure task. Matching support was defined as the disclosure of emotions followed by emotional support or a request for information followed by informational support. Partial evidence was found for the predictions. Matching support following the disclosure of emotions was predictive of perceived partner sensitivity. Mismatched support following the disclosure of emotions predicted lower marital satisfaction, through the mediation of partner sensitivity. Matching support following a request for information was not predictive of perceived partner sensitivity, but negative partner responses (e.g., criticism or sarcasm) following a request for information negatively predicted perceptions of partner sensitivity. The importance of considering the context of support transactions is discussed.     

Maternal styles in infant psychotherapy: Treatment and research implications

Infant psychotherapy, in which the mother is requested to follow the baby's activities without initiating or directing, is described. Mothers demonstrate different styles of involvement with their infants: a protective mode, a prohibitive mode, a competitive mode, and other ways of interfering with their infants' tendency to explore the environment. Attempts to analyze such factors as position, distance and movement are discussed. Research for recording and analyzing the movement of infant and mother dyads is proposed.     

Neighborhood Characteristics and Depression: An Examination of Stress Processes

ABSTRACT— Neighborhoods with poor-quality housing, few resources, and unsafe conditions impose stress, which can lead to depression. The stress imposed by adverse neighborhoods increases depression above and beyond the effects of the individual's own personal stressors, such as poverty and negative events within the family or workplace. Furthermore, adverse neighborhoods appear to intensify the harmful impact of personal stressors and interfere with the formation of bonds between people, again increasing risk for depression. Neighborhoods do not affect all people in the same way. People with different personality characteristics adjust in different ways to challenging neighborhoods. As a field, psychology should pay more attention to the impact of contextual factors such as neighborhoods. Neighborhood-level mental health problems should be addressed at the neighborhood level. Public housing policies that contribute to the concentration of poverty should be avoided and research should be conducted on the most effective ways to mobilize neighborhood residents to meet common goals and improve the context in which they live.     

Notes on infant psychotherapy

The idea of „infant psychotherapy”︁ is easily misunderstood, especially by those who associate psychiatry with images of crazy behavior. Nevertheless, there is a type of activity conducted by adults with infants, discussed with increasing frequency in recent literature, which is best understood in an analogy with adult psychotherapy. This activity may be called infant psychotherapy or infant-centered activity. Briefly, it consists of encouraging the infant to take the lead, and asking the adult in charge to follow or „track”︁ the infant's behavior as unobtrusively as possible. This is more easily said than done, and the present work tries to show why this is so. A discussion of the maternal-infant program at the Milwaukee County Mental Health Centre accompanies the observations.