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61.
Consciousness as sensory quality and as implicit self-awareness 总被引:1,自引:0,他引:1
When a mental state is conscious – in the sense that there is something it is like for the subject to have it – it instantiates a certain property F in virtue of which it is a conscious state. It is customary to suppose that F is the property of having sensory quality. The paper argues that this supposition is false. The first part of the paper discusses reasons for thinking that unconscious mental states can have a sensory quality, for example in cases of absent-minded perception. If unconscious mental states can have a sensory quality, then sensory quality is an insufficient condition for consciousness. The second part of the paper argues that there are even better reasons to think that sensory quality is an unnecessary condition for consciousness. The idea is that mental states can be conscious even when they lack sensory quality, for example, in the case of certain conscious propositional attitudes. In the third part of the paper, an alternative to the rejected supposition, drawn from the phenomenological tradition, is offered: that consciousness is a matter of implicit self-awareness, rather than of sensory quality. According to this alternative, a mental state is conscious when, and only when, it involves implicit self-awareness. 相似文献
62.
How internal categories influence how we perceive the world is a fundamental question in cognitive sciences. Yet, the relation between perceptual awareness and perceptual categorization has remained largely uncovered so far. Here, we addressed this question by focusing on face perception during subliminal and conscious perception. We used morphed continua between two face identities and we assessed, through a masked priming paradigm, the perceptual processing of these morphed faces under subliminal and supraliminal conditions. We found that priming from subliminal faces followed linearly the information present in the primes, while priming from visible faces revealed a non-linear profile, indicating a categorical processing of face identities. Our results thus point to a special relation between perceptual awareness and categorical processing of faces, and support the dissociation between two modes of information processing: a subliminal mode involving analog treatment of stimuli information, and a supraliminal mode relying on discrete representation. 相似文献
63.
In a recent paper, Brogaard (2011) presents counter-arguments to the conclusions of an experiment with blindsight subject GR. She argues that contrary to the apparent findings that GR’s preserved visual abilities relate to degraded visual experiences, she is in fact fully unconscious of the stimuli she correctly identifies. In this paper, we present arguments and evidence why Brogaard’s argument does not succeed in its purpose. We suggest that not only is relevant empirical evidence in opposition to Brogaard’s argument, her argument misconstrues necessary criteria to decide whether a conscious experience is visual or not visual. 相似文献
64.
Perception of emotion is critical for successful social interaction, yet the neural mechanisms underlying the perception of dynamic, audio-visual emotional cues are poorly understood. Evidence from language and sensory paradigms suggests that the superior temporal sulcus and gyrus (STS/STG) play a key role in the integration of auditory and visual cues. Emotion perception research has focused on static facial cues; however, dynamic audio-visual (AV) cues mimic real-world social cues more accurately than static and/or unimodal stimuli. Novel dynamic AV stimuli were presented using a block design in two fMRI studies, comparing bimodal stimuli to unimodal conditions, and emotional to neutral stimuli. Results suggest that the bilateral superior temporal region plays distinct roles in the perception of emotion and in the integration of auditory and visual cues. Given the greater ecological validity of the stimuli developed for this study, this paradigm may be helpful in elucidating the deficits in emotion perception experienced by clinical populations. 相似文献
65.
Upon hearing an ambiguous speech sound dubbed onto lipread speech, listeners adjust their phonetic categories in accordance with the lipread information (recalibration) that tells what the phoneme should be. Here we used sine wave speech (SWS) to show that this tuning effect occurs if the SWS sounds are perceived as speech, but not if the sounds are perceived as non-speech. In contrast, selective speech adaptation occurred irrespective of whether listeners were in speech or non-speech mode. These results provide new evidence for the distinction between a speech and non-speech processing mode, and they demonstrate that different mechanisms underlie recalibration and selective speech adaptation. 相似文献
66.
Robert G. Franklin Jr. Reginald B. Adams Jr. 《Journal of experimental social psychology》2009,45(5):1156-1159
The current study conceptualizes facial attractiveness as a dual-process judgment, combining sexual and aesthetic value. We hypothesized that holistic face processing is more integral to perceiving aesthetic preference and feature-based processing is more integral to sexual preference. In order to manipulate holistic versus feature-based processing, we used a variation of the composite face paradigm. Previous work indicates that slightly shifting the top from the bottom half of a face disrupts holistic processing and enhances feature-based processing. In the present study, while nonsexual judgments best explained facial attraction in whole-face images, a reversal occurred for split-face images such that sexual judgments best explained facial attraction, but only for mate-relevant faces (i.e., other-sex). These findings indicate that disrupting holistic processing can decouple sexual from nonsexual judgments of facial attraction, thereby establishing the presence of a dual-process. 相似文献
67.
Jörg Schimmel 《Journal of Happiness Studies》2009,10(1):93-111
This paper examines to what extent the concept of happiness is complementary to the United Nations Development Program's (UNDP) human development approach in the evaluation of poverty, wealth and development. The deconstruction of UNDP's discourse on and its measurement of these concepts show that its perspective is highly arbitrary. Poverty is exclusively defined as lack and state of ill-being, inferior to wealth regarded as a state of abundance and well-being. Development then becomes a teleological process trying to promote well-being through abundance. Yet, this external perspective of UNDP on well-being is questioned by the subjective perception of the individuals themselves. Happiness studies—which define happiness as the degree to which an individual judges the overall quality of his life-as-a-whole favorably—prove that higher levels of UNDP's development indicators are not necessarily better for subjective well-being. Despite methodological and conceptual problems, happiness studies discover that the individuals' perception of poverty, wealth and development can differ considerably from UNDP's perspective. Increased income, better objective health and higher levels of education do not automatically lead to greater happiness. Furthermore, additional dimensions essential for human happiness are detected by the research, yet not taken into account by UNDP. A country ranking comparison between the two approaches confirms the different visions of well-being. The integration of a happiness indicator in its analysis of poverty, wealth and development is thus indispensable for UNDP in order to correct its analytical and also practical approach to development. 相似文献
68.
Derek Henry Brown 《Philosophical Studies》2009,145(3):377-394
I defend indirect perceptual realism against two recent and related charges to it offered by A. D. Smith and P. Snowdon, both
stemming from demonstrative reference involving indirect perception. The needed aspects of the theory of demonstratives are
not terribly new, but their connection to these objections has not been discussed. The groundwork for my solution emerges
from considering normal cases of indirect perception (e.g., seeing something depicted on a television) and examining the role
this indirectness plays in demonstrative assertions. I argue that indirectness routinely if not typically plays a justificatory
role in such judgements, and not a semantic one, and that the same can be said of such judgements when considered within the
indirect realist framework. The denial of this, on my analysis, is essential to the criticisms of Snowdon and Smith. The discussion
is extended to include scenarios involving the sorts of misconceptions Smith employs.
相似文献
Derek Henry BrownEmail: |
69.
Jonathan Cole 《Phenomenology and the Cognitive Sciences》2009,8(3):343-360
This paper considers the importance of the body for self-esteem, communication, and emotional expression and experience, through the reflections of those who live with various neurological impairments of movement and sensation; sensory deafferentation, spinal cord injury and Möbius Syndrome (the congenital absence of facial expression). People with severe sensory loss, who require conscious attention and visual feedback for movement, describe the imperative to use the same strategies to reacquire gesture, to appear normal and have embodied expression. Those paralysed after spinal cord injury struggle to have others see them as people rather than as people in wheelchairs and have been active in the disability movement, distinguishing between their medical impairment and the social induced disability others project onto them. Lastly those with Möbius reveal the importance of the face for emotional expression and communication and indeed for emotional experience itself. All these examples explore the crucial role of the body as agent for social and personal expression and self-esteem. 相似文献
70.
Kristian Sandberg Bert Timmermans Morten Overgaard Axel Cleeremans 《Consciousness and cognition》2010,19(4):1069-1078
What is the best way of assessing the extent to which people are aware of a stimulus? Here, using a masked visual identification task, we compared three measures of subjective awareness: The Perceptual Awareness Scale (PAS), through which participants are asked to rate the clarity of their visual experience; confidence ratings (CR), through which participants express their confidence in their identification decisions, and Post-decision wagering (PDW), in which participants place a monetary wager on their decisions. We conducted detailed explorations of the relationships between awareness and identification performance, looking to determine (1) which scale best correlates with performance, and (2) whether we can detect performance in the absence of awareness and how the scales differ from each other in terms of revealing such unconscious processing. Based on these findings we discuss whether perceptual awareness should be considered graded or dichotomous. Results showed that PAS showed a much stronger performance-awareness correlation than either CR or PDW, particularly for low stimulus intensities. In general, all scales indicated above-chance performance when participants claimed not to have seen anything. However, such above-chance performance only showed when we also observed a correlation between awareness and performance. Thus (1) PAS seems to be the most exhaustive measure of awareness, and (2) we find support for above-chance performance in the absence of subjective awareness, but such unconscious knowledge only contributes to performance when we observe conscious knowledge as well. Similarities and differences between scales are discussed in the light of consciousness theories and response strategies. 相似文献