Cognition and Perception Commons^™

Stimulus–Response Congruency Effects Depend On Quality Of Perceptual Evidence: A Diffusion Model Account, Blaine Tomkins

Psychology Faculty Publications

Individuals often need to make quick decisions based on incomplete or “noisy” information. This requires the coordination of attentional, perceptual, cognitive, and behavioral mechanisms. This poses a challenge for isolating the unique effects of each subprocess from behavioral data, which reflect the summation of all subprocesses combined. Sequential sampling models offer a more detailed examination of behavioral data, enabling us to separate decisional and non-decisional processes at play in a task. Participants were required to identify briefly presented shapes while perceptual (duration, size, location) and response features (location-congruent/-incongruent/-neutral) of the task were manipulated. The diffusion model (Ratcliff, 1978) was used …

Cosmetics Increase Skin Evenness: Evidence From Perceptual And Physical Measures, Carlota Batres, Aurélie Porcheron, Julie Latreille, Magalie Roche, Frédérique Morizot, Richard Russell

Psychology Faculty Publications

Background

Cosmetics are commonly attributed with increasing skin evenness, yet little published data characterizes the effect, either perceptually or physically. We therefore investigated whether makeup increases skin evenness using a perceptual measurement and two physical measurements of color and luminance homogeneity.

Materials and Methods

Twenty‐two French women (aged 29‐45 years) were photographed without cosmetics, with self‐applied cosmetics, and with professionally‐applied cosmetics. In Study 1, 143 participants rated skin evenness. In Study 2, each face was delineated to create regions of interest (ROI) in the cheek and forehead areas. Both ROIs were then analyzed for luminance homogeneity using an established measure …

Age-Related Differences In Vehicle Control And Eye Movement Patterns At Intersections: Older And Middle-Aged Drivers, Yusuke Yamani, William J. Horrey, Yulan Liang, Donald L. Fisher

Psychology Faculty Publications

Older drivers are at increased risk of intersection crashes. Previous work found that older drivers execute less frequent glances for detecting potential threats at intersections than middle-aged drivers. Yet, earlier work has also shown that an active training program doubled the frequency of these glances among older drivers, suggesting that these effects are not necessarily due to age-related functional declines. In light of findings, the current study sought to explore the ability of older drivers to coordinate their head and eye movements while simultaneously steering the vehicle as well as their glance behavior at intersections. In a driving simulator, older …

Investigating Intrinsic And Extrinsic Variables During Simulated Internet Search, Molly M. Liechty, Poornima Madhaven

Psychology Faculty Publications

Using an eye tracker we examined decision-making processes during an internet search task. Twenty experienced homebuyers and twenty-five undergraduates from Old Dominion University viewed homes on a simulated real estate website. Several of the homes included physical properties that had the potential to negatively impact individual perceptions. These negative externalities were either easy to change (Level 1) or impossible to change (Level 2). Eye movements were analyzed to examine the relationship between participants' "stated preferences"[verbalized preferences], "revealed preferences" [actual decisions[, and experience. Dwell times, fixation durations/counts, and saccade counts/amplitudes were analyzed. Results revealed that experienced homebuyers demonstrated a more refined …