Recognition of moving video images of conspecifics by pigeons: Effects of individuals, static and dynamic motion cues, and movement

Two groups of pigeons were trained with a go/no-go procedure to discriminate video images of conspecifics based on the individuals or else on their actions. Both groups showed rapid acquisition, and the discrimination transferred to new scenes in Experiment 1 and to static scenes in Experiment 2. In Experiment 3, experimentally naive pigeons were trained to discriminate video images of particular birds showing different actions. Transfer to novel scenes, including a new bird and a new motion, revealed the dominance of motion as a cue to discriminate video images. In Experiment 4, the pigeons trained to discriminate video scenes of 2 pigeons showing a variety of activities successfully recognized these stimuli regardless of whether the video was played forward or backward, and transferred the discrimination to still scenes. The findings suggest that pigeons’ discrimination of video images is primarily based on information that is invariant across static and dynamic conditions.     

Attention and memory for faces and actions in infancy: the salience of actions over faces in dynamic events

Discrimination and memory for video films of women performing different activities was investigated in 5.5 month-old infants. In Experiment 1, infants (N = 24) were familiarized to the faces of one of three women performing one of three repetitive activities (blowing bubbles, brushing hair, and brushing teeth). Overall, results indicated discrimination and memory for the actions but not the faces after both a 1-min and a 7-week delay. Memory was demonstrated by a visual preference for the novel actions after the 1-min delay and for the familiar actions after the 7-week delay, replicating prior findings that preferences shift as a function of retention time. Experiment 2 (N = 12) demonstrated discrimination and memory for the faces when infants were presented in static poses at the 1-min delay, but not the 7-week delay. In Experiment 3 (N = 18), discrimination of the actions was replicated, but no discrimination among the objects embedded in the actions (hairbrush, bubble wand, toothbrush) was found. These findings demonstrate the attentional salience of actions over faces in dynamic events to 5.5 month-olds. They highlight the disparity between results generated from moving versus static displays in infancy research and emphasize the importance of using dynamic events as a basis for generalizing about perception and memory for events in the real world.     

It ain't just what you do and the way that you do it: why discourse matters in higher education communities of practice

A number of Australian universities have established and sponsored interdisciplinary communities of practice (CoPs) to develop teaching and learning. CoPs are popularly defined as groups of people who share a passion for something and, together, learn how to do it better. Without further specification, this definition is of limited use in understanding intentionally established CoPs in higher education settings. The term CoP is used and applied in a range of ways in higher education and has been accompanied by some scholarly debate about the meaning and relevance of CoPs to academe. The prevalent response to such debate has been to propose typologies. While typology can be useful, epistemology and discourse are also significant in understanding and developing higher education CoPs. In this paper I focus on discourse surrounding CoPs as a conceptual and developmental factor which has been insufficiently considered in the literature on higher education CoPs. I draw on findings from interviews with 33 CoP members and facilitators in three Australian universities. My findings indicate that discourse surrounding CoPs is significant in shaping notions of participatory value. Connecting with the literature, my findings also reveal a ‘big D’ Discourse of collegiality whereby CoPs offer social support and knowledge sharing to build capacity, as well as spaces in which a collegial academic identity can thrive. This coincides in complex and unpredictable ways with a Discourse of managerialism. I conclude that discourse should supplement typology and epistemology in adaptively shaping understandings of contemporary higher education CoPs and their future development.     

Individual differences among undergraduate women in methods of coping with stressful events: the impact of cumulative childhood stressors and abuse

OBJECTIVE: The purpose of the current study was to determine if a history of greater exposure to different types of adverse and/or abusive experiences in childhood would influence coping strategies used by undergraduate women to deal with new stressful events in young adulthood. METHOD: A sample of 828 women undergraduates from a New England state university participated in this questionnaire study. Disengagement and engagement coping strategies used in response to recent stressors were compared in groups who had none, one, two, or three or more types of adverse and/or abusive childhood experiences (sexual abuse, physical abuse, witnessing domestic violence, having an alcoholic parent, and parental rejection). RESULTS: There was an increased reliance on disengagement methods of coping (wishful thinking, problem avoidance, social withdrawal, and self-criticism) as a function of more extensive child abuse histories. Engagement methods of coping (problem solving, cognitive restructuring, social support, and express-emotions), however, did not show a corresponding decrease as a function of increased exposure to different types of childhood stressors and/or abuse. CONCLUSIONS: This study demonstrates that undergraduate women with cumulative adverse and/or abusive childhood histories are particularly at-risk of relying on maladaptive disengagement coping strategies to deal with various new stressors later in life.     

Helping or hindering: the role of secondary educators in facilitating friendship opportunities among students with and without autism or developmental disability

This is an interpretivist qualitative study that explores the contexts and dynamics of friendships between three groups of young adults; each group includes an individual with autism or severe disability and nondisabled high school students. The most prominent finding identified in the data was that educators affected opportunities for social interactions between students with and without autism or severe disability. Educator influence on social participation included factors that decreased interactions, such as missed opportunities for social interactions and social consequences of academic supports. Educator influence also included factors that increased interactions, specifically four strategies to increase social interactions and facilitate possible friendships or maintain existing friendships between students with and without autism or severe disability.