The Church in the World: Shifting Notions of Ecclesial Identity among North American Mennonites

Abstract : At mid‐century, Harold S. Bender's “The Anabaptist Vision” provided a definition of sixteenth‐century Anabaptist tradition that clarified the self‐understanding of its contemporary Mennonite heirs and by which their faithfulness to the tradition might be judged. Critics of the vision, such as J. Lawrence Burkholder, sought reformulations of the vision's central tension between separation from and integration into “the world,” calling for greater social responsibility and for a recognition that the ambiguities of human existence extend to the church, of necessity qualifying its lived expressions of radical discipleship.     

Toward a Theory of Progressive Evolution (Large-Scale Stages of Evolutionary Progress)

Here I discuss the basic elements, major stages, and completion of progressive evolution. The cosmic world of self-realization is based on extensive self-development within a closed contour: temporal counter-transitions of spatial counter-elements (energy bonds and media and, basically, substance structures) form of local worlds within it through evolution of informational structures.

• The organic world of reproduction develops through the open informational path: the initial substance, through energy exchange and metabolism, reproduces similar substance; the latter interacts with the environment and, subsequently, reproduces its like, and so on.

• The animal world of self-regulation builds up a closed informational contour in the environment through the informational input and command output.

• The human world of self-cognition forms the intensive type of development within the internal closed informational contour of cognition. Counter-transitions of ideal images and signs relate to their real prototypes. In the course of cognition, abstractive thinking develops and brings man to the possibility of reflection of the initial world in its integrity (thus, elevates man to the infinite, by Hegel).

     

Effects of visual information regarding allocentric processing in haptic parallelity matching

Research has revealed that haptic perception of parallelity deviates from physical reality. Large and systematic deviations have been found in haptic parallelity matching most likely due to the influence of the hand-centered egocentric reference frame. Providing information that increases the influence of allocentric processing has been shown to improve performance on haptic matching. In this study allocentric processing was stimulated by providing informative vision in haptic matching tasks that were performed using hand- and arm-centered reference frames.     

Effects of peripheral eccentricity and head orientation on gaze discrimination

Visual search tasks support a special role for direct gaze in human cognition, while classic gaze judgement tasks suggest the congruency between head orientation and gaze direction plays a central role in gaze perception. Moreover, whether gaze direction can be accurately discriminated in the periphery using covert attention is unknown. In the present study, individual faces in frontal and in deviated head orientations with a direct or an averted gaze were flashed for 150 ms across the visual field; participants focused on a centred fixation while judging the gaze direction. Gaze discrimination speed and accuracy varied with head orientation and eccentricity. The limit of accurate gaze discrimination was less than ±6° eccentricity. Response times suggested a processing facilitation for direct gaze in fovea, irrespective of head orientation, however, by ±3° eccentricity, head orientation started biasing gaze judgements, and this bias increased with eccentricity. Results also suggested a special processing of frontal heads with direct gaze in central vision, rather than a general congruency effect between eye and head cues. Thus, while both head and eye cues contribute to gaze discrimination, their role differs with eccentricity.     

Children's strategic compensation for size underconstancy: Dependence on distance and relation to reasoning ability

When asked to judge the size of a distant object, older children are more likely than younger ones to report deliberately inflating their judgements to compensate for size underconstancy (Granrud, in press). The current investigation examined whether use of this strategy depends on object distance and whether it is related to individual differences in reasoning, knowledge about size perception, or cognitive style. In two studies, children in Grades 1–3 estimated the size of a distant (61 m away) and near (6.1 m away) disc. In each, half of the children reported inflating their judgement of the distant disc to compensate for a tendency to underestimate its size, but only a few reported using this strategy for the near disc. Self-reported strategy users tended to either judge the distant disc accurately or to overestimate its size, whereas the other children tended to underestimate its size. Strategy reporters obtained higher scores on a test of verbal reasoning, but did not differ from the other children in reflectivity-impulsivity. In Study 1, strategy reporters also showed a better understanding of how distance affects the apparent size of objects in photographs. This understanding was strongly related to verbal reasoning ability. In Study 2, visuospatial reasoning ability was also found to predict who would report strategy use, and this predictive relation was independent of verbal reasoning ability.     

Roles of Visual Information for Control of Reaching Movements in Children

Poststroke hemiparetic individuals (n = 9) and a control group (n = 9) completed a frequency-scaled circle-drawing task in unimanual and bimanual conditions. Measures of intralimb spatial and temporal task accuracy and interlimb coordination parameters were analyzed. Significant reductions in task performance were seen in both limbs of the patients and controls with the introduction of bimanual movement. Spatial performance parameters suggested that the 2 groups focused on different hands during bimanual conditions. In the controls, interlimb coordination variables indicated predictable hand dominance effects, whereas in the patient group, dominance was influenced by the side of impairment and prior handedness of the individual. Therefore, in this particular bimanual task, performance improvements in the hemiplegic side could not be elicited. Intrinsic coupling asymmetries between the hands can be altered by unilateral motor deficits.     

Evidence Supporting the Importance of Peripheral Visual Information for the Directional Control of Aiming Movement

The focus of the present study was on determining whether the high level of directional accuracy found in aiming studies in which the subjects can see their hand in the visual periphery supports the existence of a kinetic visual channel or, rather, the advantage of binocular over monocular vision for movement directional control. The limits of this kinetic visual channel were also explored. The results of the 1st experiment indicated that seeing one's hand in the visual periphery is sufficient to ensure optimal directional aiming accuracy. Further, no differences in aiming accuracy were noted between monocular and binocular vision. These results supported the existence of a visual kinetic channel. In the 2nd experiment, whether this kinetic visual channel would operate with movements slower (55°/s) than those usually used in studies that had proved its existence (over 110°/s) was determined. The results indicated that this visual kinetic channel was operative even at relatively slow movement velocities. Central vision of the hand seemed to be used for on-line directional control of relatively slow movements.     

Paleolithic Art and Cognition

In this article, I have explored some of the possible relationships between the first appearance of representational art in human history and the early development of human cognition. I argue that most Upper Paleolithic depictions directly represent generalized mental images of their animal subjects rather than percepts or recollected scenes from life and that these images, in turn, are representations of concepts at the basic level of categorization. A common feature of Paleolithic art forms is the salience of parts, and the treatment of parts indicates analytic and synthetic (recombinative) abilities. There are some indications of superordinate categorization. An expansion of conceptual thinking seems to be implied as well as the beginnings of operational thought. The presence and practice of depiction may have had the effect of bringing concepts into consciousness and thus inducing reflection in at least a partially abstract mode.     

Visual Consciousness and The Phenomenology of Perception

Ideally, psychological and phenomenological studies of visual experience should be mutually informative. In that spirit, this article outlines parts of Maurice Merleau‐Ponty's phenomenological view of visual experience as a kind of independently active opaque bodily synthesis, and uses those views to (a) help ground and extend Alva Noë's rejection of the “snapshot” theory of visual experience in favor of a more enactive view of visual content, (b) critique a failing of Noë's account, and (c) show how the assumptions underlying more internalist and Cartesian views of visual experience can illegitimately creep in even when they are being carefully criticized.     

The Visuomotor System Resists the Horizontal-Vertical Illusion

The effect of the horizontal-vertical illusion on the visual and visuomotor systems was investigated. Participants (N = 8) viewed horizontal and vertical lines in an inverted-T stimulus and judged whether the two line segments were the same or different lengths. Participants also reached out and grasped either the vertical or the horizontal line segment of the stimulus. Perceptually, participants succumbed to the illusion; that is, they judged Ts of equal horizontal and vertical line lengths to be different and Ts of unequal line lengths to be the same. When reaching toward the same stimuli, however, the size of their grip aperture was scaled appropriately for the various line lengths. Thus, whereas the perceptual system succumbed to the illusion, the visuomotor system did not. Those results support a model proposed by M. A. Goodale and A. D. Milner (1992), who posited separate cortical pathways for visual perception and visually guided action.