The role of selective attention in perceptual and affective priming

Two kinds of perceptual priming (word identification and word fragment completion), as well as preference priming (that may rely on special affective mechanisms) were examined after participants either read or named the colors of words and nonwords at study. Participants named the colors of words more slowly than the colors of nonwords, indicating that lexical processing of the words occurred at study. Nonetheless, priming on all three tests was lower after color naming than after reading, despite evidence of lexical processing during color naming shown by slower responses to words than to nonwords. These results indicate that selective attention to (rather than the mere processing of) letter string identity at study is important for subsequent repetition priming.     

Visual motion integration for perception and pursuit

To examine the relationship between visual motion processing for perception and pursuit, we measured the pursuit eye-movement and perceptual responses to the same complex-motion stimuli. We show that humans can both perceive and pursue the motion of line-figure objects, even when partial occlusion makes the resulting image motion vastly different from the underlying object motion. Our results show that both perception and pursuit can perform largely accurate motion integration, i.e. the selective combination of local motion signals across the visual field to derive global object motion. Furthermore, because we manipulated perceived motion while keeping image motion identical, the observed parallel changes in perception and pursuit show that the motion signals driving steady-state pursuit and perception are linked. These findings disprove current pursuit models whose control strategy is to minimize retinal image motion, and suggest a new framework for the interplay between visual cortex and cerebellum in visuomotor control.     

Doors for memory: A searchable database

The study of human long-term memory has for over 50 years been dominated by research on words. This is partly due to lack of suitable nonverbal materials. Experience in developing a clinical test suggested that door scenes can provide an ecologically relevant and sensitive alternative to the faces and geometrical figures traditionally used to study visual memory. In pursuing this line of research, we have accumulated over 2000 door scenes providing a database that is categorized on a range of variables including building type, colour, age, condition, glazing, and a range of other physical characteristics. We describe an illustrative study of recognition memory for 100 doors tested by yes/no, two-alternative, or four-alternative forced-choice paradigms. These stimuli, together with the full categorized database, are available through a dedicated website. We suggest that door scenes provide an ecologically relevant and participant-friendly source of material for studying the comparatively neglected field of visual long-term memory.     

The categorical structure of knowledge for famous people (and a novel application of Centre-Surround theory)

Knowledge of familiar people is essential to guide social interaction, yet there is uncertainty about whether semantic knowledge for people is stored in a categorical structure as for objects. Four priming experiments using hard-to-perceive primes investigated whether occupation forms a category connecting famous persons in semantic memory. Primes were famous faces exposed for 17ms with masking, resulting in severely restricted awareness and thus precluding expectancy-based priming effects. Targets were consciously perceptible famous faces (Experiments 1-3), famous names (Experiment 3), or occupations (Experiment 4) representing either the same or different occupation to the prime. Significant priming demonstrated the operation of automatic processes, including spreading activation, among persons sharing a common occupation; this supports the categorical view. The direction of priming (faster/slower responses to same-occupation than different-occupation targets) was dependent on prime-target stimulus onset asynchrony (Experiments 1-3) and type of target (Experiment 4). This pattern of results is attributed to the Centre-Surround mechanism proposed by Carr and Dagenbach [Carr, T. H., & Dagenbach, D. (1990). Semantic priming and repetition priming from masked words: evidence for a centre-surround attentional mechanism in perceptual recognition. Journal of Experimental Psychology: Learning, Memory and Cognition, 16, 341-350]. These results support (a) the categorical structure of semantic knowledge for famous people and (b) the application of the Centre-Surround mechanism to the domain of person recognition.     

School Counselor Accountability: The Path to Social Justice and Systemic Change

Expectations run high that accountability for student outcomes will continue to drive the education agenda with reauthorization of the Elementary and Secondary Education Act (1965). School counselors have also recognized the imperative to connect their work to school improvement goals. This article discusses action research undertaken by school counselors who used data‐informed practice to align counseling programs with the accountability expectations of the No Child Left Behind Act of 2001 (2002) and the American School Counselor Association (2003, 2005) National Model.     

Varieties of Religious Naturalism

This article opens with two generic definitions of religious naturalism in general: one by Jerome Stone and one by Rem Edwards used by Charley Hardwick. Two boundary issues, humanism and process theology, are discussed. A brief sketch of my own "minimalist" and pluralist version of religious naturalism follows. Finally, several issues that are, or should be, faced by religious naturalists are explored.     

The Effects of Life Events Inventory

There has been some disagreement in the literature regarding the wisdom of including negative and positive life events in life event scales. However, underlying much of this discussion has been the assumption that the negativity or positivity of various events may be denoted a priori. The present study investigated the relative desirability and impact of 66 life events rewritten to suit the culture of the samples used. In addition, the effect of recency of occurrence of these events was explored. Results clearly indicated that some apparently negative life events were experienced as desirable by some participants, and that some apparently positive events were experienced as undesirable by several participants. Differences in response patterns according to age, gender, anxiety level, and type of presenting problem were also examined. The implications of these findings for assessment in clinical and research situations are discussed.     

A Summary of Michael Ruse's Darwin and Design

Michael Ruse's Darwin and Design: Science, Philosophy, Religion explains the history and philosophical arguments of the design metaphor of evolution. It recounts the historical uses of the metaphor from Plato to twentieth-century American science. Ruse explores the criticisms of the design metaphor and ultimately concludes that it is a beneficial term. The chief contribution of Darwin and Design is that it offers a clear understanding and comparison of the argument from design and the argument to design.