Fichte’s critique of physicalism – towards an idealist alternative

ABSTRACT

Though the perennial problem of consciousness has outlasted the idealists, the reductivist turn in contemporary naturalistic philosophy of mind and the non-reductivist reactions to it provoke us to re-think post-Kantian idealism. Fichte's Wissenschaftslehre makes for a classical case of non-reductivist (and probably even non-naturalist) approach to mind and his critique of ‘dogmatism’ is all the more relevant in this context. This article contains four sections. The first section is an introduction that explains why post-Kantian idealism is relevant to contemporary philosophy of mind. The second section pinpoints the placement issue that confronts not only current philosophers but also partially motivated Fichte's own philosophy. The third section is a short but essential remark about the normative and practical valence of ‘knowledge’ and ‘science’ in Fichte's traditional understanding of them. In the fourth section, I provide a reconstructive analysis of Fichte's understanding and critique of physicalism. Fichte's argument can be analyzed into two horns with each targeting reductivism and epiphenomenalism respectively. The final section is a brief but positive exposition on a necessary feature, namely reflexivity, of mind and the first-person perspective. Fichte's appropriation of intellectual intuition exemplifies a non-representationalist picture that connects content transparency with the active nature of mind.     

Does the mortality salience effect on worldview defence depend on the cultural orientation of Chinese people?

According to the terror management theory, people tend to favour their worldview and in-group members after being reminded of death (i.e., mortality salience [MS] effect). However, inconsistent findings of the MS effect were found among Chinese people. In the present study, we examined the MS effect with Chinese samples and tested whether the effect would depend on participants' cultural orientation and relational self-esteem. In Studies 1 (N = 227) and 2 (N = 221), we examined the roles of participants' cultural orientations and relational self-esteem in their evaluations on moral transgression and/or perceived regard from people around after being primed with mortality (vs. dental pain) salience. We obtained the interaction effects of mortality salience, cultural orientations, and relational self-esteem. The implications of these results are discussed in the context of Chinese culture.     

Teamwork and flow proneness mitigate the negative effect of excess challenge on flow state

Flow theory postulates that flow experience is the most intense under high-challenge/high-skill conditions, whereas an excess of challenge is aversive. This study explores potential moderators that may offset the negative impact of overly high challenge on flow state. The literature suggests that a situational factor, teamwork, and a dispositional factor, flow proneness, may moderate the relationship between challenge and flow state. We tested these moderators with Hong Kong Chinese students whose optimal condition for experiencing flow was biased toward low-challenge/high-skill. A total of 128 participants played puzzles in three challenge levels both alone and in pairs. Although challenge level was negatively associated with flow state, dyadic (team) game (compared with solitary game) and flow proneness mitigated the negative relationship between challenge and flow state. These findings shed light on factors that promote enjoyment in challenging activities even among people in cultures that are prudent about challenges.     

Other-race categorisation advantage in a binary- vs. ternary-response race categorisation task*

When categorising a face based on race, people respond faster to other-race faces than own-race faces [Other-Race Categorisation Advantage (ORCA)]. Five experiments were conducted to examine the ORCA in Chinese participants in race categorisation tasks. Participants classified a face either as Chinese vs. non-Chinese (binary response) or as Caucasian, Indian, or Chinese (ternary response). Experiments 1A and 1B replicated the ORCA with Chinese vs. Caucasian and Chinese vs. Indian faces, respectively, in a binary-response task. Experiments 2A/2B and 3 presented faces of all three races in the ternary- and binary-response tasks. Task type was manipulated between and within participants in Experiments 2A/2B and 3, respectively. The typical ORCA occurred in the binary-response task, but did not consistently so in the ternary-response task. These results indicate that neither the race-feature hypothesis [Levin, D. T. 1996. Classifying faces by race: The structure of face categories. Journal of Experimental Psychology: Learning, Memory, and Cognition, 22(6), 1364–1382] nor the differential processing hypothesis [Zhao, L., & Bentin, S. 2011. The role of features and configural processing in face-race classification. Vision Research, 51(23-24), 2462–2470] could fully account for the ORCA observed in the ternary-response task.     

Complete mergeability and amodal completion.

When image fragments are taken to correspond to the visible portions of a single occluded object, the object is said to 'amodally complete' behind the occluder. Kellman and Shipley (Kellman, P. J., & Shipley, T. F. (1991). A theory of visual interpolation in objective perception. Cognitive Psychology, 23, 144-221) argued that when the virtual contour extensions of such image fragments subtend an obtuse or right angle, the contours are 'relatable' and therefore complete. However, edge and surface relatability are neither necessary nor sufficient for completion to be perceived (Tse, P. U. (1999) Volume completion. Cognitive Psychology). Evidence is offered that completion is not driven directly by image cues such as contour relatability, but is driven, rather, by intermediate representations, such as volumes that are inferred from global image cue relationships. Evidence suggests that several factors, none of which is necessary for amodal completion to occur, contribute to the perceived strength of amodal completion, including similarity of pattern or substance, proximity, and good volume continuation or complete mergeability. Two partially occluded volumes are completely mergeable when they can be extended into occluded space along the trajectory defined by their visible surfaces such that they merge entirely with each other. Mergeability is not measurable in the image because it describes an inferred relationship among volumes that must themselves be inferred from the image.     

Wakes and spokes: new motion-induced brightness illusions

Under certain conditions, high-contrast moving figures induce adjacent illusory regions, 'wakes' and 'spokes', which have contrast polarity opposite the inducing figures. In this paper we document properties of these novel phenomena. When the illusions are induced by a moving bar, spokes appear on the side of the bar closer to fixation and connect the bar to the fixation point, regardless of the momentary position of the bar or whether it is moving to the left or to the right. Although spokes often extend up to the fixation point, they never extend beyond it. This is not due to blocking of the spoke's spread by the fixation point, because in another experiment spokes extend directly through an intervening figure. Whereas spokes emanate from the end of a horizontally moving bar closest to fixation, wakes emanate from the end farthest from fixation. In contrast to spokes, wakes do not show a towards-fixation bias. Instead, the wake's end trails the position of the bar, like a ship's wake. The higher the bar velocity, the more the end of the wake appears to trail it, suggesting that wakes are caused by a process which spreads from the edge of moving figures. Wakes and spokes, as distinct illusions, should provide significant constraints on theories of human motion and brightness perception processes.     

The whole moves less than the spin of its parts

When individually moving elements in the visual scene are perceptually grouped together into a coherently moving object, they can appear to slow down. In the present article, we show that the perceived speed of a particular global-motion percept is not dictated completely by the speed of the local moving elements. We investigated a stimulus that leads to bistable percepts, in which local and global motion may be perceived in an alternating fashion. Four rotating dot pairs, when arranged into a square-like configuration, may be perceived either locally, as independently rotating dot pairs, or globally, as two large squares translating along overlapping circular trajectories. Using a modified version of this stimulus, we found that the perceptually grouped squares appeared to move more slowly than the locally perceived rotating dot pairs, suggesting that perceived motion magnitude is computed following a global analysis of form. Supplemental demos related to this article can be downloaded from app.psychonomic-journals.org/content/supplemental.     

The use of health technology and information: e-learning technological approach.

The Internet is becoming the preferred place for finding information. Millions of people go online in search of health and medical information. Likewise, health care professionals must be able to retrieve and manage information in an efficient, effective manner. The development of health technology and informatics (HTI) has been rapid, yet little is known about the knowledge and attitudes of nursing students with regard to using HTI. Therefore, the objective of the present study was to explore nursing students' knowledge of and attitudes toward using HTI and to use an e-learning workshop to enhance the effective use of HTI. In Phase I, 115 first-year full-time nursing students were invited to complete a 13-item questionnaire regarding knowledge of and attitudes toward computer and Internet use, knowledge of HTI, and attitudes toward the future development of HTI. Participants perceived themselves to be knowledgeable in computer and Internet use, while knowledge of HTI was perceived to be low and attitudes toward the future development of HTI were generally positive. Phase II was an e-learning HTI workshop; topics included an introduction to HTI, examples of HTI in use, and the application and implementation of various HTI projects. There were 30 participants in the E-learning workshop, and their feedback was positive. Nurses and all health care professionals must be prepared to participate in the development of health technology and informatics. Teaching and learning activities should be geared toward mastery of HTI in the nursing education curriculum in order to enhance health care quality and safety.     

Grouping inhibits motion fading by giving rise to virtual trackable features

After prolonged viewing of a slowly drifting or rotating pattern under strict fixation, the pattern appears to slow down and then momentarily stop. The authors show that grouping can slow down the process of "motion fading," suggesting that cortical configural form analysis interacts with the computation of motion signals during motion fading. The authors determined that grouping slows motion fading because it can give rise to trackable features, such as virtual contour terminators not present in the image, that possess stronger motion signals than would occur in the absence of such trackable features. That a continuously rotating stimulus will eventually be perceived to stop, despite the presence of such trackable features, suggests that the motion-from-form system itself can be fatigued. The finding that stationary form can remain visible even after the motion signal has faded suggests that the neural bases of motion visibility and form visibility arise from different neuronal populations.