Sentence comprehension and memory for embedded structure

An experimental simulation technique is introduced to study memory constraints affecting comprehension of embedded sentences. Memory for embedded structure is measured in a pairing task that simulates requirements imposed by sentence comprehension. With increasing memory load (number of embeddings), the rate of performance decline is consistent across all (recall and comprehension) conditions, and reflects a loss of order (as opposed to item) information. Short-term memory overload, rather than linguistic complexity, appears sufficient to account for comprehension difficulty. Performance was imperfect even with singly embedded constructions. Recall showed no abrupt failure with multiple embeddings, indicating that memory constraints are not as discontinuous as English syntax might suggest.     

Eye movement contingent display control in studying reading

A computer system has been developed that permits experimental control over a CRT display contingent upon characteristics of the viewer’s eye movements. The display can be changed during specific saccadic eye movements or fixations. Uses of such a system for studying reading are described. The paper reviews hardware and software considerations in developing such a system.     

Arousal of negative emotions and symptom-specific reactivity in chronic low back pain patients

Anger may have greater effects on chronic pain severity than other negative emotions and may do so by increasing muscle tension near the site of injury (symptom-specific reactivity). For patients with chronic low back pain (CLBP), relevant muscles are lower paraspinals (LP). Ninety-four CLBP patients and 79 controls underwent anger and sadness recall interviews. EMG and cardiovascular activity were recorded. Patients exhibited greater LP tension increases during anger and slower recovery than controls. Only patients showed greater LP reactivity during anger than sadness. For both groups, trapezius reactivity during anger and sadness did not differ. LP reactivity to anger correlated with everyday pain severity for patients. Anger-induced symptom-specific LP reactivity may be linked to chronic pain aggravation among CLBP patients.     

Incentives improve performance on both incremental and insight problem solving

An increasing number of studies are showing a connection between emotion and motivation and cognitive processes. Most of these studies, however, have been correlational in nature, limiting the conclusions that can be drawn. We directly manipulated motivation through the use of an incentive and investigated its effects on insight and incremental problem solving. In four experiments we found that an incentive (the opportunity to leave the experiment early) increased problem-solving performance for all problems presented, regardless of problem type. Additionally, we found evidence that the incentive increased recall memory, indicating more thorough processing for participants in the incentive condition. This study provides evidence that incentives influence problem solving and implies that motivation should not be ignored when investigating cognitive processes.     

Chapters of Our Lives: Life Narratives of Midlife and Older Australian Women

A narrative approach was used to explore whether women perceive their later years as a time of loss, stability, or gain, and the explanations they give for their perceptions. Life review interviews were held with 20 married or previously married mothers aged 60–65 living in lower-income suburbs of Sydney, Australia. Participants were asked to consider their life story as a book, to divide the book into chapters, and to entitle each chapter. Two types of gain narrative accounted for 70% of the stories: one (breakouts) described gains that resulted from the womans own actions, and the other (stress relief) described gains from role changes and the passage of time. A further 20% described continuing contentment with their lives, and 10% of the accounts described later life in terms of losses. The findings suggest that one reason for the later life satisfaction regularly found by surveys of older adults may be the disappearance or diminishment of previous life stressors. As part of a planned cohort comparison, similar interviews were held with women aged 50–55 and 40–45. An additional category of ongoing stress was required to accommodate their narratives.     

Behavior change after context disruption: Opportunities and pitfalls

Many behaviors are performed automatically in response to contextual cues rather than conscious intentions, which can make behavior change challenging. The combined discontinuity and self-activation hypotheses predict that disruption to a context that cues behaviors can provide opportunity for behavior change guided by intentions rather than contextual cues. In this study, we asked an online sample of participants (N = 452) to report on desired change in the frequency of new, unwanted, or potentially habitual behaviors following a contextual disruption due to the COVID-19 pandemic. We find a distinction between new ‘start’ behaviors and unwanted ‘stop’ behaviors where new behaviors appear more personally meaningful (i.e. higher in autonomous motivation and positive affective attitude) than unwanted or potentially habitual behaviors. Our results suggest that behavior change theory and interventions that acknowledge differential processes between starting new behaviors and stopping old unwanted behaviors would provide greater insights for behavior science.     

Adoption decision making process: A pilot study of effects of psychological needs

The present study examined an aspect of the adoption process which has received minimal research attention—time. Specifically, this study investigated the relationships between progression through the adoption process and the psychological needs for sensation and uniqueness. The results suggest that there exists an association between one's need for sensation and progression through the adoption process. A significantly weaker relationship was observed for the need for uniqueness.     

Of sex roles and strollers: Female and male attention to toddlers at the zoo

Research supports the conclusion that adults interact differently with children of different sexes. Laboratory and home studies indicate that fathers/adult males are the primary agents of sex typing and that mothers/adult females are the primary caretakers, especially regarding the managerial aspects of child care. Little attention, however, has been directed at the public display of these differences and their covariance. Observations were made of 6414 visitors to the Sacramento zoo, with 524 adult females, 524 adult males, and 524 toddler triumvirates targeted for specific analyses of adult-child interactions and caretaking behaviors. Males were significantly more likely to carry female toddlers than male toddlers, while females made no such distinction. Adult females were more likely than adult males to push the child's stroller. Related research on the father's role in sex-typing behavior and the role of the division of child care between parents in the maintenance and reproduction of gender roles is discussed.This research was supported by a University of California at Davis Faculty Research Grant to the second author. We thank R. J. Mitchell for his contributions, both in and out of his stroller.