Two- to eight-month-old infants' perception of dynamic auditory-visual spatial colocation

From birth, infants detect associations between the locations of static visual objects and sounds they emit, but there is limited evidence regarding their sensitivity to the dynamic equivalent when a sound-emitting object moves. In 4 experiments involving thirty-six 2-month-olds, forty-eight 5-month-olds, and forty-eight 8-month-olds, we investigated infants' ability to process this form of spatial colocation. Whereas there was no evidence of spontaneous sensitivity, all age groups detected a dynamic colocation during habituation and looked longer at test trials in which sound and sight were dislocated. Only 2-month-olds showed clear sensitivity to the dislocation relation, although 8-month-olds did so following additional habituation. These results are discussed relative to the intersensory redundancy hypothesis and work suggesting increasing specificity in processing with age.     

Leadership Reflections: Organizational Language

Leadership language communicates more than words. Leaders are able to use the power of language to not only articulate an organizational vision but to create excitement and support around that vision. Library leaders can model organizational values through speech strengthening a written policy into practice. Organizational culture is difficult to change but leaders can counter negative and deceptive messages into productive statements that help employees move forward to understand and embrace library strategic goals. How a leader chooses to use language to articulate a vision, advance organizational values, and to change organizational culture is critical. Ignoring language opportunities will hinder not only leader success but organizational success as well.     

The Development of Size Sequencing Skills: An Empirical and Computational Analysis

We explore a long-observed phenomenon in children's cognitive development known as size seriation. It is not until children are around 7 years of age that they spontaneously use a strict ascending or descending order of magnitude to organize sets of objects differing in size. Incomplete and inaccurate ordering shown by younger children has been thought to be related to their incomplete grasp of the mathematical concept of a unit. Piaget first brought attention to children's difficulties in solving ordering and size-matching tests, but his tasks and explanations have been progressively neglected due to major theoretical shifts in scholarship on developmental cognition. A cogent alternative to his account has never emerged, leaving size seriation and related abilities as an unexplained case of discontinuity in mental growth. In this monograph, we use a new training methodology, together with computational modeling of the data to offer a new explanation of size seriation development and the emergence of related skills. We describe a connected set of touchscreen tasks that measure the abilities of 5- and 7-year-old children to (a) learn a linear size sequence of five or seven items and (b) identify unique (unit) values within those same sets, such as second biggest and middle-sized. Older children required little or no training to succeed in the sequencing tasks, whereas younger children evinced trial-and-error performance. Marked age differences were found on ordinal identification tasks using matching-to-sample and other methods. Confirming Piaget's findings, these tasks generated learning data with which to develop a computational model of the change. Using variables to represent working and long-term memory (WM and LTM), the computational model represents the information processing of the younger child in terms of a perception-action feedback loop, resulting in a heuristic for achieving a correct sequence. To explain why older children do not require training on the size task, it was hypothesized that an increase in WM to a certain threshold level provides the information-processing capacity to allow the participant to start to detect a minimum interval between each item in the selection. The probabilistic heuristic is thus thought to be replaced during a transitional stage by a serial algorithm that guarantees success. The minimum interval discovery has the effect of controlling search for the next item in a principled monotonic direction. Through a minor additional processing step, this algorithm permits relatively easy identification of ordinal values. The model was tested by simulating the perceptual learning and action selection processes thought to be taking place during trial-and-error sequencing. Error distributions were generated across each item in the sequence and these were found to correspond to the error patterns shown by 5-year-olds. The algorithm that is thought to emerge from successful learning was also tested. It simulated high levels of success on seriation and also on ordinal identification tasks, as shown by 7-year-olds. An unexpected finding from the empirical studies was that, unlike adults, the 7-year-old children showed marked difficulty when they had to compute ordinal size values in tasks that did not permit the use of the serial algorithm. For example, when required to learn a non-monotonic sequence where the ordinal values were in a fixed random order such as “second biggest, middle-sized, smallest, second smallest, biggest,” each item has to be found without reference to the “smallest difference” rule used by the algorithm. The difficulty evinced by 7-year-olds was consistent with the idea that the information in LTM is integrally tied to the search procedure itself as a search-and-stop based on a cumulative tally, as distinct from being accessed from a more permanent and atemporal store of stand-alone ordinal values in LTM. The implications of this possible constraint in understanding are discussed in terms of further developmental changes. We conclude that the seriation behavior shown by children at around 7 years represents a qualitative shift in their understanding but not in the sense that Piaget first proposed. We see the emergent algorithm as an information-reducing device, representing a default strategy for how humans come to deal with potentially complex sets of relations. We argue this with regard to counting behaviors in children and also with regard to how linear monotonic devices for resolving certain logical tasks endure into adulthood. Insofar as the monograph reprises any aspect of the Piagetian account, it is in his highlighting of an important cognitive discontinuity in logicomathematical understanding at around the age of 7, and his quest for understanding the transactions with the physical world that lead to it.     

A Leader's Toolbelt

Leaders need a variety of tools to be effective in their management, communication, and leadership. These tools should be used for specific jobs and are operational in working with some personalities but not all. Leaders can develop these tools and over time, learn when and how to effectively use them. Such tools will enhance the leader's ability to address a variety of situations and issues drawing upon expertise gained through experience.     

Long Term Vision Creates Perspective

Column Editor's Note. Leaders need to develop long term perspectives if they are to be successful in leading their organizations into the future. A vision is a good start but the leader needs to be able to anticipate developments, opportunities, changes, and finances if they are to guide their organization through a changing landscape. Successful leaders are able to develop insights into the future and position their organization to positively interact with their environment. While some of these skills are intuitive, leaders are able to develop a long term perspective through several strategies. Interested authors are invited to submit articles for this column to the editor at farrell@uwyo.edu.     

Capturing Flow in the Business Classroom

This study focuses on the flow experience in business education. Flow experience, characterized by concentration, control, and enjoyment, can lead to better learning outcomes. Leading preconditions of flow include the balance of challenge and skill, feedback, and goal clarity. Other situational factors affect the flow experience through the mediating effects of these three factors. In this article, we extend an existing framework linking flow and learning. Using the model as a guide, we start our research effort of flow in business education by conducting a field survey of student learning experience in terms of flow and influential factors. Data were collected using business students taking an introductory Operations Management course. The analysis reveals that flow does exist in classroom learning. Its key dimensions are concentration, sense of control, and enjoyment. The more important leading factor is having clear feedback. Characteristics of both the instructor and students play a role in the flow experience of students during lecture. It is evident that flow theory offers a useful framework for business education research. Suggestions for future research are made.     

Dynamics of emotion,problem solving,and identity: Portraits of three girl coders

ABSTRACT

Background and Context

Women are underrepresented in the field of computer science, a trend that in part can be traced to girls’ early experiences with the discipline.     

The Risk of Delivering Disturbing Messages to Zoo Family Audiences

One of the roles of the modern zoo is to provide environmental education. Zoo visitation comprises primarily family groups seeking to spend time together. There is potential for tension between message and audience expectation as zoos seek to raise awareness of the effects of irresponsible human behavior on the environment. This may unsettle family visitors. This study explored levels of tolerance of the zoo audience to a disturbing exhibition covering broad environmental themes. Results showed that participants were prepared to reflect on the content and at times feelings were sufficiently strong for zoo visitors to challenge one another's beliefs. The delicate positioning of zoos as environmental education providers is discussed.     

Researching without representation? Language and materiality in post-qualitative methodology

The article imagines a materially informed post-qualitative research. Focusing upon issues of language and representation, under the influence of Deleuze’s Logic of Sense, it argues for research practices capable of engaging the materiality of language itself. It proposes the development of non- or post-representational research practices, drawing on contemporary materialist work that rejects the static, hierarchical logic of representation, and practices such as interpretation and analysis as conventionally understood. The article explores the ontological and the practical implications of this state of affairs, via a re-reading of a fragment of what would have been called data. Offering relief from the ressentiment and piety that have characterised qualitative methodologists’ engagements with scientific method, the ‘post’ could therefore be read as signalling the demise of qualitative research. Or at least, as inaugurating a qualitative research that would be unrepresentable to itself.     

Theory generation and practice improvement: a mental health service perspective

This article presents findings from four problem-based research sites that comprise a larger action research project within primary care mental health services. The projects explored in this article are ongoing and involve working with small networks within specific areas: a GP practice counseling service, a Community Mental Health Team, a GP attached social worker scheme and a rural health cross-disciplinary team. By taking a constructivist approach, and through use of grounded theory techniques, the findings share some common features with Action Research and demonstrate two key aims of problem-based methodology, mainly practice improvement and theory generation (Robinson, 1993). First, they illustrate that a particular understanding of mental health service users can be reached from exploring the way in which they are excluded. Four excluded identities are presented (absent, mediated, difficult and elusive). Secondly, within the understanding that the success of problem-based research can be determined by the effectiveness of actions taken in the local setting (Edwards & Talbot, 1994), the article explores how reflection of user perspectives can move the research forward. Actions taken to improve the service include incremental changes and new initiatives, as well as the development of new avenues of research, thus adding to other action research within healthcare services (Hart & Bond, 1997).