Heuristics for Broader Assessment of Effectiveness and Usability in Technology-Mediated Technical Communication

Purpose: To offer additional tools for the assessment of effectiveness and usability in technology-mediated communication based in established heuristics. Method: An interdisciplinary group of researchers at Rensselaer Polytechnic Institute selected five disparate examples of technology-mediated communication, formally evaluated each using contemporary heuristics, and then engaged in an iterative design process to arrive at an expanded toolkit for in depth analyses. Results: A set of heuristics and operationalized metrics for the deeper analysis of a broader scope of contemporary technology-mediated communication. Conclusions: The continual evolution of communication, including the emergence of new, interactive media, provides a challenging opportunity to identify effective approaches and techniques. There are benefits to a renewed focus on relationships between people and between people and information, and we offer additional criteria and metrics to supplement established means of heuristic analysis

Layer-Specific fMRI Reflects Different Neuronal Computations at Different Depths in Human V1

Recent work has established that cerebral blood flow is regulated at a spatial scale that can be resolved by high field fMRI to show cortical columns in humans. While cortical columns represent a cluster of neurons with similar response properties (spanning from the pial surface to the white matter), important information regarding neuronal interactions and computational processes is also contained within a single column, distributed across the six cortical lamina. A basic understanding of underlying neuronal circuitry or computations may be revealed through investigations of the distribution of neural responses at different cortical depths. In this study, we used T2-weighted imaging with 0.7 mm (isotropic) resolution to measure fMRI responses at different depths in the gray matter while human subjects observed images with either recognizable or scrambled (physically impossible) objects. Intact and scrambled images were partially occluded, resulting in clusters of activity distributed across primary visual cortex. A subset of the identified clusters of voxels showed a preference for scrambled objects over intact; in these clusters, the fMRI response in middle layers was stronger during the presentation of scrambled objects than during the presentation of intact objects. A second experiment, using stimuli targeted at either the magnocellular or the parvocellular visual pathway, shows that laminar profiles in response to parvocellular-targeted stimuli peak in more superficial layers. These findings provide new evidence for the differential sensitivity of high-field fMRI to modulations of the neural responses at different cortical depths

Metatalk in American academic talk: The cases of "point" and "thing"

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/88138/1/swales-metatalk_american_academic.pd

Closing: Toward an Integrated Approach

In this special section on Current and Emerging Methods in the Rhetorical Analysis of Texts, we have reported on the results of a project we undertook in order to better understand the costs and benefits of adopting particular approaches to the rhetorical analysis of texts. In the synthesis that follows, we begin with a brief review of the results of our researchers’ analyses, then turn to examine their commonalities and variations. Finally, we conclude with the considerations that should be taken into account in choosing a method, as well as a discussion of the potential for integration. Overall, this synthesis will suggest that there is much to be gained by employing multiple methods for the rhetorical analysis of texts and outlines some of the design standards that can be used to support its development

Opening: Toward an Integrated Approach

The rise of digital humanities has led many writing researchers to consider using digital tools to analyze rhetorical patterns in text. Yet taking a digital approach to the analysis of texts is a complex task. We are faced with a variety of techniques and tools, all of which require significant investment to learn and use. How can we best understand the costs and benefits of adopting a particular approach? Are they simply alternatives or can they be integrated? The three sets of authors in this special section attempt to address these questions by using alternative methodologies to analyze a common set of documents. The following opening piece serves as an introduction to the project. In it, we place their research in the context of taxonomy of approaches to text analysis, and review prior attempts at integration. Following the articles, a closing piece examines the prospects for integration. In it, we provide a brief review of the results of the analyses followed by an examination of their commonalities and variations. Finally, we conclude with the considerations that should be taken into account in choosing a method for textual analysis, as well as a discussion of the potential for an integration of methods

WC748590_captions_supplemental_materials – Supplemental material for Coding for Language Complexity: The Interplay Among Methodological Commitments, Tools, and Workflow in Writing Research

<p>Supplemental material, WC748590_captions_supplemental_materials for Coding for Language Complexity: The Interplay Among Methodological Commitments, Tools, and Workflow in Writing Research by Cheryl Geisler in Written Communication</p