Wayfinding is generally understood as the process of purposefully navigating to distant and non-visible destinations. Within this broad framework, uninformed searching entails finding one’s way to a target destination, in an unfamiliar environment, with no knowledge of its location. Although a variety of search strategies have been previously reported, this research was largely conducted in the laboratory or virtual environments using simplistic and often non-realistic situations, raising questions about its ecological validity. In this study, we explored how extant findings on (...) searching translate to a real-world environment, using a phenomenologically informed experiment. Our findings demonstrate a previously undescribed complex and dynamic interplay of different search strategies. Importantly, our results reveal that: (i) the presence of other people is importantly entangled with the process of searching; and (ii) people frequently probe and switch between search strategies based on local environmental characteristics. Together, our results reveal that search behaviour is critically dependent on environmental features and that searching in complex real-world settings should not be conceptualised as depending on a simple singular strategy. This raises questions about the dominance of laboratory-based experiments and their narrow cognitivist framework, highlighting the value of studying wayfinding in the real world. (shrink)

This book is a volume in the Penn Press Anniversary Collection. To mark its 125th anniversary in 2015, the University of Pennsylvania Press rereleased more than 1,100 titles from Penn Press's distinguished backlist from 1899-1999 that had fallen out of print. Spanning an entire century, the Anniversary Collection offers peer-reviewed scholarship in a wide range of subject areas.

Spoken word recognition involves a perceptual tradeoff between the reliance on the incoming acoustic signal and knowledge about likely sound categories and their co-occurrences as words. This study examined how adult second language (L2) learners navigate between acoustic-based and knowledge-based spoken word recognition when listening to highly variable, multi-talker truncated speech, and whether this perceptual tradeoff changes as L2 listeners gradually become more proficient in their L2 after multiple months of structured classroom learning. First language (L1) Mandarin Chinese listeners and (...) L1 English-L2 Mandarin adult listeners took part in a gating experiment. The L2 listeners were tested twice—once at the start of their intermediate/advanced L2 language class and again two months later. L1 listeners were only tested once. Participants were asked to identify syllable-tone words that varied in syllable token frequency (high/low according to a spoken word corpus) and syllable-conditioned tonal probability (most probable/least probable in speech given the syllable). The stimuli were recorded by 16 different talkers and presented at eight gates ranging from onset-only (gate 1) through onset+40 ms increments (gates 2 through 7) to the full word (gate 8). Mixed-effects regression modeling was used to compare performance to our previous study which used single-talker stimuli (Wiener, Lee, & Tao, 2019). The results indicated that multi-talker speech caused both L1 and L2 listeners to rely greater on knowledge-based processing of tone. L1 listeners were able to draw on distributional knowledge of syllable-tone probabilities in early gates and switch to predominantly acoustic-based processing when more of the signal was available. In contrast, L2 listeners, with their limited experience with talker range normalization, were less able to effectively transition from probability-based to acoustic-based processing. Moreover, for the L2 listeners, the reliance on such distributional information for spoken word recognition appeared to be conditioned by the nature of the acoustic signal. Single-talker speech did not result in the same pattern of probability-based tone processing, suggesting that knowledge-based processing of L2 speech may only occur under certain acoustic conditions, such as multi-talker speech. (shrink)

Many normative political theorists have engaged in the systematic collection and/or analysis of empirical data to inform the development of their arguments over the past several decades. Yet, the approach they employ has typically not been treated as a distinctive mode of theorizing. It has been mostly overlooked in surveys of normative political theory methods and methodologies, as well as by those critics who assert that political theory is too abstracted from actual political contestation. Our aim is to unearth this (...) grounded normative theory (GNT) approach – to identify its definitive practices and highlight its potential significance. We detail four overlapping commitments characteristic of GNT. These include commitments to expanding the comprehensiveness of input for normative arguments through original empirical research and/or analysis, recursivity in the development of normative claims, attentiveness to the systematic inclusion of a range of voices and ways of knowing, and accountability to those engaged by the theorist in empirical contexts. We discuss methodological distinctions within GNT, including between more- and less-solidaristic approaches. We discuss how GNT answers calls for theorists to engage more closely with empirical political dynamics and we consider responses to possible critiques. (shrink)

Don't enter the world of Digital SLR without this book! If you want to use your Digital SLR camera like a pro, let a pro show you how! Sally Wiener Grotta and Daniel Grotta have been covering the world of digital photography since 1991, and this book is like a private course in DSLR mastery. From understanding the parts of your camera to using the controls effectively to shooting stunning, beautiful, and meaningful photographs to editing your images, here's everything you (...) want to know tomake your investment in a Digital SLRpay off big in gorgeous pictures. Let the experts tell you how Here's advice from the undisputed digital camera experts for less than the cost of a memory card! The Grottas help you choose the right model, get the best shots, edit like a pro, and produce showstopping prints from your DSLR. Get professional guidance on * Choosing a Digital SLR camera that fits your needs and your budget * Understanding different types of image sensors * Selecting and working with lenses * Determining the right resolution for various photo types * Using the camera's controls to fine-tune your pictures * Working with RAW format * Learning the aesthetics of what makes a great photograph * Getting great shots of action, nature, and events * Seeing how light, shadow, contrast, and color affect the mood and intention of everything you shoot * Managing your image files efficiently * Editing your images for professional results. (shrink)

You have the camera, or intend to. You have the desire. Now, you have personalized instruction from PC Magazine "The play of light and color on the human imagination." That's how Daniel and Sally Wiener Grotta define photography. They'll lead you through choosing a digital camera and using all its amazing features, but photography is more than technology. These renowned experts liberally share their knowledge of lighting, settings, focus, file formats, communicating with pictures, and more. Read a little, then go (...) shoot some pictures, study them, and read some more. See what you and that camera can do -- together. Go one-on-one with the pros Choose a camera that fits your needs Understand resolution, compression, pixels, and file formats Use shutter speed, lighting, and depth of field Learn about white balance and color adjustment Organize your shots on the camera Shoot photos for company publications or online auctions Pick up tips for getting great photos Get your pictures out of the camera, easily Edit, print, and e-mail photos. (shrink)

abstractBackground: Evidence shows both a tendency for research participants to conflate research and clinical care and a limited public understanding of research. Conflation of research and care by participants is often referred to as the therapeutic misconception. Despite this evidence, few studies have explicitly asked participants, and especially minors, to explain what they think research is and how they think it differs from regular medical care. Methods: As part of a longer semistructured interview evaluating assent and parental permission for research, (...) adolescent research participants (n = 177), including adolescents with illnesses and healthy volunteers, and their parents (n = 177) were asked to describe medical research in their own words and say whether and how they thought being in medical research was different from seeing a regular doctor. Qualitative responses were coded and themes were identified through an iterative process. Results: When asked to describe medical research, the majority described research in terms of its goals of helping to advance science, develop treatments and medicines, and help others; fewer described research as having the goal of helping particular research participants, and fewer still in terms of the methods used in research. The majority of teen and parent respondents said being in research is different than seeing a regular doctor and explained this by describing different goals, different or more procedures, differences in the engagement of the doctors/researchers, and differences in logistics. Conclusions: Adolescents participating in clinical research and their parents generally describe medical research in terms of its goals of advancing science and finding new medicines and treatments, sometimes in combination with helping the enrolled individuals. The majority perceive a difference between research and regular medical care and described these differences in various ways. Further exploration is warranted about how such perceived differences matter to participants and how this understanding could be used to enhance informed consent and the overall research experience. (shrink)