Race categorization modulates holistic face encoding

Recent studies have shown that same-race (SR) faces are processed more holistically than other-race (OR) faces, a difference that may underlie the greater difficulty at recognizing OR than SR faces (the "other-race effect"). This article provides original evidence suggesting that the holistic processing of faces may be sensitive to the observers' racial categorization of the face. In Experiment 1, Caucasian participants performed a face-composite task with Caucasian faces, Asian faces, and racially ambiguous morphed face stimuli. Identical morphed face stimuli were processed more holistically when categorized as SR than as OR faces. Experiment 2 further suggests that this finding was not underlain by strategic or training effects. Overall, these results support the view that one's categorization of a face as belonging to the same or another race plays a critical role in the holistic processing of this face.     

The influence of attention on holistic face encoding

We examined the influence of attention on the formation of holistic face representations using the composite effect (Perception 16 (1987) 747). In Experiment 1, stimuli composed of a face superimposed on a house were shown during encoding. Subjects delineated either the face or the house, thus manipulating attention away or toward the face. In Experiment 2, an intact face image was presented with letters scrolling from top to bottom. Subjects were asked to either ignore the letters or read them and decipher the words that they formed. Aligned and misaligned composites were shown at testing. Recognition performance was consistently better for misaligned than aligned stimuli, regardless of the allocation of attention during encoding. In Experiment 3, we show that the composite effect can be eliminated by a disruption in holistic processing at the time of encoding. We conclude that holistic encoding is one aspect of face analysis that occurs equally well with or without attention.     

Scanning,holistic encoding,and the word-superiority effect

The role of holistic encoding induced by scanning in the superior identifiability target letters in orthographic strings (words) enjoy over those in strings of unrelated letters was examined in two experiments. Both the set of potential targets and the critical position in the letter arrays were predesignated. One group in each experiment was induced to scan each array from left to right in a dot-counting task. A dot could precede the array to its left and/or appear with the array to its right. Only this group displayed the word superiority. For the second group in the first experiment, any dot(s) present always appeared with the array. The second group in the second experiment was shown no dots but, rather, performed the letter-identification task only. The absence of a word-superiority effect in other studies is related to holistic encoding stemruing from scanning requirements, and the implications for positional uncertainty explanations of the phenomenon are discussed.     

Electrophysiological correlates of the composite face illusion: Disentangling perceptual and decisional components of holistic face processing in the human brain

When the bottom halves of two faces differ, people’s behavioral judgment of the identical top halves of those faces is impaired: they report that the top halves are different, and/or take more time than usual to provide a response. This behavioral measure is known as the composite face effect (CFE) and has traditionally been taken as evidence that faces are perceived holistically. Recently, however, it has been claimed that this effect is driven almost entirely by decisional, rather than perceptual, factors ( Richler, Gauthier, Wenger, & Palmeri, 2008). To disentangle the contribution of perceptual and decisional brain processes, we aimed to obtain an event-related potential (ERP) measure of the CFE at a stage of face encoding ( Jacques & Rossion, 2009) in the absence of a behavioral CFE effect. Sixteen participants performed a go/no-go task in an oddball paradigm, lifting a finger of their right or left hand when the top half of a face changed identity. This change of identity of the top of the face was associated with an increased ERP signal on occipito-temporal electrode sites at the N170 face-sensitive component (∼160 ms), the later decisional P3b component, and the lateralized readiness potential (LRP) starting at ∼350 ms. The N170 effect was observed equally early when only the unattended bottom part of the face changed, indicating that an identity change was perceived across the whole face in this condition. Importantly, there was no behavioral response bias for the bottom change trials, and no evidence of decisional biases from electrophysiological data (no P3b and LRP deflection in no-go trials). These data show that an early CFE can be measured in ERPs in the absence of any decisional response bias, indicating that the CFE reflects primarily the visual perception of the whole face.     

Effects of task requirements on rapid natural scene processing: from common sensory encoding to distinct decisional mechanisms

Using manual responses, human participants are remarkably fast and accurate at deciding if a natural scene contains an animal, but recent data show that they are even faster to indicate with saccadic eye movements which of 2 scenes contains an animal. How could it be that 2 images can apparently be processed faster than a single image? To better understand the origin of this speed advantage in forced-choice categorization, the present study used a masking procedure to compare 4 tasks in which sensory, decisional, and motor aspects were systematically varied. With stimulus onset asynchronies (SOAs) above 40 ms, there were substantial differences in sensitivity between tasks, as determined by d' measurements, with an advantage for tasks using a single image. However, with SOAs below 30-40 ms, sensitivity was similar for all experiments, despite very large differences in reaction time. This suggests that the initial part of the sensory encoding relies on common and parallel processing across a large range of tasks, whether participants have to categorize the image or locate a target in 1 of 2 scenes.     

Indecision on decisional separability

The theoretical framework of General Recognition Theory (GRT; Ashby & Townsend, Psychological Review, 93, 154-179, 1986) coupled with the empirical analysis tools of Multidimensional Signal Detection Analysis (MSDA; Kadlec & Townsend, Multidimensional models of perception and recognition, pp. 181-228, 1992) have become one important method for assessing dimensional interactions in perceptual decision-making. In this article, we critically examine MSDA and characterize cases where it is unable to discriminate two kinds of dimensional interactions: perceptual separability and decisional separability. We performed simulations with known instances of violations of perceptual or decisional separability, applied MSDA to the data generated by these simulations, and evaluated MSDA on its ability to accurately characterize the perceptual versus decisional source of these simulated dimensional interactions. Critical cases of violations of perceptual separability are often mischaracterized by MSDA as violations of decisional separability.     

Apparent movement and metacontrast suppression: A decisional analysis

Three test and three mask energies were varied orthogonally and randomly over trials. The stimulus onset asynchrony (ISOA) separating test and mask was varied between trial blocks within each of two display conditions, apparent movement (two-object) and metacontrast (threeobject). Subjects were required to makebrightness judgments of both test and mask energies by responding “bright,” “medium,” or “dim” with respect to the apparent intensity of each stimulus. The accuracy and the coherence lconsistencyt of test judgments were U-shaped functions of SOA for both apparent movement and metacontrast situations. However, the accuracy and the coherence of mask judgments did not vary with SOA for either apparent movement or metacontrast. It was noted that substantially the same results have been reported previously when subjects were required to makecontour judgments. Hence, it is argued that apparent movement and metacontrast suppression are intimately related.     

A virtue ethical approach to decisional capacity and mental health

It is a common assumption that lack of autonomy is incompatible with decisional capacity and mental health. However, there are two general conceptions of autonomy, one value-neutral and the other value-laden, which imply different notions of mental health. I argue that the value-neutral notion of autonomy is independently inadequate and that it also provides an inadequate foundation for judging whether someone is decisionally incapable or mentally disordered. I propose an alternative, value-laden account which posits ten capabilities required for basic human functioning. I then defend this account against objections and highlight its practical utility in designing optimal treatment.     

The ups and downs of face perception: evidence for holistic encoding of upright and inverted faces

A visual-search task was used to investigate the influence of facial organisation on discrimination of an internal facial feature. Participants searched for a downturned mouth in arrays of one to six faces that differed only in the target feature, with distractor faces containing an upturned mouth. Feature search was tested in four different face contexts: upright unaltered faces, inverted unaltered faces, upright faces in which the internal features were scrambled, or inverted scrambled faces. Normal face organisation facilitated feature search in upright faces, but slowed it in inverted faces. These findings demonstrate an interdependence of features and their configuration in the perceptual analysis of both upright and inverted faces.     

Validity of the decisional process inventory

Empirical research on career indecision has been criticized for lacking theoretical conceptualization. To address this problem we examined the validity of the decisional process inventory (DPI), a measure of career decision making derived from a model based in Gestalt psychotherapy theory. Undergraduate college students (91 women, 110 men) responded to the DPI and criterion measures of career indecision and vocational identity. Results supported hypothesized relations between and among DPI items and subscales, and the ability of the measure to differentiate individuals by expressed career choice status. Significant intercorrelations among DPI subscales and criterion measures supported the concurrent validity of the DPI. Confirmatory maximum likelihood factor analysis of the DPI items did not support the hypothesized structure of the DPI to measure three career decision-making process dimensions: readiness, action, and resistance. Although results supported the basic psychometric properties of the DPI as a brief measure of career decision making, additional research is needed to clarify the underlying factor structure of the instrument.     

Individual strategy preferences and decisional fit

The present research introduces the concept of decisional fit. A decision maker experiences decisional fit when the individually preferred decision strategy fits the actually applied strategy. In accordance to other fit‐concepts in psychology (e.g., person–environment fit), we expected positive effects of decisional fit. Five studies examine the effects of a fit between the individual preference for intuition and deliberation (PID) and the actually used decision strategy (intuition or deliberation). A comparison of extreme types (according to participants' values on the PID scale) revealed that decisional fit enhances the perceived value of the chosen or evaluated object (Studies 1–3). In Studies 4 and 5, participants experienced less regret after decisional fit. The findings highlight the importance of considering individual differences when comparing intuitive and deliberate decision making, because strategy preferences interact with applied strategies. Copyright © 2008 John Wiley & Sons, Ltd.     

Early maturity of face recognition: No childhood development of holistic processing, novel face encoding, or face-space

Historically, it was believed the perceptual mechanisms involved in individuating faces developed only very slowly over the course of childhood, and that adult levels of expertise were not reached until well into adolescence. Over the last 10 years, there has been some erosion of this view by demonstrations that all adult-like behavioural properties are qualitatively present in young children and infants. Determining the age of maturity, however, requires quantitative comparison across age groups, a task made difficult by the need to disentangle development in face perception from development in all the other cognitive factors that affect task performance. Here, we argue that full quantitative maturity is reached early, by 5-7 years at the latest and possibly earlier. This is based on a comprehensive literature review of results in the 5-years-to-adult age range, with particular focus on the results of the few previous studies that are methodologically suitable for quantitative comparison of face effects across age, plus three new experiments testing development of holistic/configural processing (faces versus objects, disproportionate inversion effect), ability to encode novel faces (assessed via implicit memory) and face-space (own-age bias).     

Nurturing Spirituality: A rationale for holistic education

In this article I examine the nature of ecological spirituality as it is discovered within the growing field of holistic education. I introduce holistic education and attempt to describe its chief characteristics by reference to the thought of Dewey and Hegel. Dewey was the ultimate progressive, yet his attachment to scientific progress and disregard for inherited wisdom mean that his work is not suitable for holistic education without adaptation. Hegel was the metaphysical philosopher of wholeness, yet his systematic, totalizing view of democracy which so alarmed Karl Popper similarly means that adaptation is again required. I argue that holistic education takes up a position between the two philosophers, experiential yet enculturated, metaphysical yet fluid and processual. I examine the ideas of both writers in relation to four key elements of holistic education and conclude by showing how they could combine to provide a rationale for the future.     

Personality correlates of decisional and task avoidant procrastination

Newly constructed scales of decisional procrastination were validated as a precondition for assessing similarities and differences between decisional and task avoidant procrastination. The two behavioral dispositions and their concomitant affective reactions (tension during decision making and discomfort about postponing tasks, respectively) were found to be independent. Each disposition was general rather than specific with a high inter‐correlation of indecisiveness on matters of minor as well as major importance and a high inter‐correlation of postponing life routines as well as postponing academic assignments. Two of the five Costa–McCrae personality factors accounted for most of the explained variance in the two kinds of procrastination, Neuroticism for decisional procrastination and Conscientiousness for task avoidance procrastination, respectively. These findings were consistent with theoretical formulations by Lazarus (Appraisal–Anxiety–Avoidance Model) and Kuhl (Action Control Theory). Copyright © 2000 John Wiley & Sons, Ltd.     

The holistic paradigm

Our present age is characterized by rapid processes of social transformation due to the rise of the systems sciences, computers and information technology. Part I of this paper distinguishes two perspectives for an interpretation of the ongoing evolution of our society as influenced by these newer developments in science and technology. From a structural perspective we argue that they have not created a society with entirely new structures, but just an expansion and intensification of the organizational‐technical systems which have typified the technological society since the Industrial Revolution. From a worldview perspective on our society we conclude that “systems rationalism” reinforces the prevailing technical worldview which fosters a progressive technical control and streamlining of society and human adaptation to its framework.     

Holos: A collaborative environment for similarity-based holistic approaches

Through this article, we aim to introduce Holos—a new collaborative environment that allows researchers to carry out experiments based on similarity assessments between stimuli, such as in projective-mapping and sorting tasks. An important feature of Holos is its capacity to assess real-time individual processes during the task. Within the Holos environment, researchers can design experiments on its platform, which can handle four kinds of stimuli: concepts, images, sounds, and videos. In addition, researchers can share their study resources within the scientific community, including stimuli, experimental protocols, and/or the data collected. With a dedicated Android application combined with a tactile human–machine interface, subjects can perform experiments using a tablet to obtain similarity measures between stimuli. On the tablet, the stimuli are displayed as icons that can be dragged with one finger to position them, depending on the ways they are perceived. By recording the x,y coordinates of the stimuli while subjects move the icons, the obtained data can reveal the cognitive processes of the subjects during the experiment. Such data, named digit-tracking data, can be analyzed with the SensoMineR package. In this article, we describe how researchers can design an experiment, how subjects can perform the experiment, and how digit-tracking data can be statistically analyzed within the Holos environment. At the end of the article, a short exemplary experiment is presented.