scholarly journals The Functional effects of voluntary and involuntary visual phantom color on conscious awareness

2018 ◽  
Author(s):  
Shuai Chang ◽  
Joel Pearson
Keyword(s):  
Mental Imagery ◽  
Binocular Rivalry ◽  
Visual Experience ◽  
Conscious Awareness ◽  
Color Spreading ◽  
Retinal Stimulation ◽  
The Relationship ◽  
Color Imagery

AbstractThe constructive nature of vision is perhaps most evident during hallucinations, mental imagery, synesthesia, perceptual filling-in, and many illusions in which conscious visual experience does not overtly correspond to retinal stimulation: phantom vision. However, the relationship between voluntary and involuntary phantom vision remains largely unknown. Here, we investigated two forms of visual phantom color, neon phantom color spreading and voluntary color mental imagery and their effect on subsequent binocular rivalry perception. Passively viewing neon phantom color induced time sensitive, suppressive effects on spatially non-overlapping subsequent binocular rivalry. These effects could be attenuated by rotating the color-inducers, or like color imagery, by concurrent uniform luminance stimulation. The degree of neon color induced rivalry suppression predicted the degree of voluntary color imagery facilitation, both on subsequent rivalry perception. Further, these suppressive and facilitative effects were additive when experienced successively. Our results suggest potential sensory mechanistic commonalities between voluntary and involuntary phantom vision.

Binocular Rivalry

2017 ◽  
Author(s):  
Randolph Blake
Keyword(s):  
Binocular Rivalry ◽  
Visual Processing ◽  
Visual Experience ◽  
Neural Dynamics ◽  
Retinal Images ◽  
Interocular Suppression ◽  
Perceptual Illusion ◽  
Bistable Perception ◽  
Retinal Stimulation ◽  
Over Time

: Binocular rivalry epitomizes the essence of a perceptual illusion in that it involves a compelling dissociation of retinal stimulation and visual experience: dissimilar monocular stimuli appear and disappear reciprocally and unpredictably over time, even though retinal images of both stimuli remain unchanged. Thus binocular rivalry is instigated when dissimilar visual stimuli are imaged on corresponding areas of the two eyes. These dissimilarities can arise from differences in form (both simple and complex), color, or direction of motion. This beguiling phenomenon—binocular rivalry—affords the psychologist a potent means for probing visual processing outside of awareness and the neurophysiologist a strategy for studying neural dynamics. Related concepts including bistable perception, interocular suppression, and neural dynamics are explored.

scholarly journals Attention driven phantom vision: measuring the sensory strength of attentional templates and their relation to visual mental imagery and aphantasia

2020 ◽  
Vol 376 (1817) ◽  
pp. 20190688 ◽  
Author(s):  
Rebecca Keogh ◽  
Joel Pearson
Keyword(s):  
Mental Imagery ◽  
Binocular Rivalry ◽  
Visual Imagery ◽  
Special Population ◽  
Simulation Tool ◽  
Theme Issue ◽  
External Stimulation ◽  
Feature Based ◽  
Future Object ◽  
The Relationship

When we search for an object in an array or anticipate attending to a future object, we create an ‘attentional template' of the object. The definitions of attentional templates and visual imagery share many similarities as well as many of the same neural characteristics. However, the phenomenology of these attentional templates and their neural similarities to visual imagery and perception are rarely, if ever discussed. Here, we investigate the relationship between these two forms of non-retinal phantom vision through the use of the binocular rivalry technique, which allows us to measure the sensory strength of attentional templates in the absence of concurrent perceptual stimuli. We find that attentional templates correlate with both feature-based attention and visual imagery. Attentional templates, like imagery, were significantly disrupted by the presence of irrelevant visual stimuli, while feature-based attention was not. We also found that a special population who lack the ability to visualize (aphantasia), showed evidence of feature-based attention when measured using the binocular rivalry paradigm, but not attentional templates. Taken together, these data suggest functional similarities between attentional templates and visual imagery, advancing the theory of visual imagery as a general simulation tool used across cognition. This article is part of the theme issue ‘Offline perception: voluntary and spontaneous perceptual experiences without matching external stimulation’.

scholarly journals Mental imagery: pulling the plug on perceptualism

2021 ◽  
Author(s):  
Dan Cavedon-Taylor
Keyword(s):  
Mental Imagery ◽  
Structural Features ◽  
Predictive Processing ◽  
Perceptual State ◽  
Perceptual Disorders ◽  
Whole Class ◽  
The Relationship

AbstractWhat is the relationship between perception and mental imagery? I aim to eliminate an answer that I call perceptualism about mental imagery. Strong perceptualism, defended by Bence Nanay, predictive processing theorists, and several others, claims that imagery is a kind of perceptual state. Weak perceptualism, defended by M. G. F. Martin and Matthew Soteriou, claims that mental imagery is a representation of a perceptual state, a view sometimes called The Dependency Thesis. Strong perceptualism is to be rejected since it misclassifies imagery disorders and abnormalities as perceptual disorders and abnormalities. Weak Perceptualism is to be rejected since it gets wrong the aim and accuracy conditions of a whole class of mental imagery–projected mental imagery–and relies on an impoverished concept of perceptual states, ignoring certain of their structural features. Whatever the relationship between perception and imagery, the perceptualist has it wrong.

scholarly journals Reducing Implicit Prejudice

2017 ◽  
Author(s):  
Calvin K Lai ◽  
Kelly M. Hoffman ◽  
Brian A. Nosek
Keyword(s):  
Social Preferences ◽  
Prejudice Reduction ◽  
Conscious Awareness ◽  
Real World Application ◽  
Implicit Prejudice ◽  
And Behavior ◽  
The Relationship ◽  
Conscious Control ◽  
Open Issues

Implicit prejudice are social preferences that exist outside of conscious awareness or conscious control. We summarize evidence for three mechanisms that influence the expression of implicit prejudice: associative change, contextual change, and change in control over implicit prejudice. We then review the evidence (or lack thereof) for five open issues in implicit prejudice reduction research: 1) what shows effectiveness in real-world application; 2) what doesn’t work for implicit prejudice reduction; 3) what interventions produce long-term changes in implicit prejudice; 4) measurement diversity in implicit prejudice reduction research; and 5) the relationship between implicit prejudice and behavior. Addressing these issues provide an agenda for clarifying the conditions and implications of reducing implicit prejudice.

scholarly journals Subliminal audio-visual congruency enhances perceptual pleasure

2021 ◽  
Author(s):  
Chenyang Lin ◽  
Maggie Yeh ◽  
ladan shams
Keyword(s):  
Perceptual Experience ◽  
Critical Role ◽  
Human Perception ◽  
Conscious Awareness ◽  
Temporal Alignment ◽  
Sensory Modalities ◽  
Temporal Aspect ◽  
The Relationship

Human perception is inherently multisensory, with cross-modal integration playing a critical role in generating a coherent perceptual experience. To understand the causes of pleasurable experiences, we must understand whether and how the relationship between separate sensory modalities influences our experience of pleasure. We investigated the effect of congruency between vision and audition in the form of temporal alignment between the cuts in a video and the beats in an accompanying soundtrack. Despite the subliminal nature of the manipulation, a higher perceptual pleasure was found for temporal congruency compared with incongruency. These results suggest that the temporal aspect of the interaction between the visual and auditory modalities plays a critical role in shaping our perceptual pleasure, even when such interaction is not accessible to conscious awareness.

scholarly journals Anger Effects on Driver Situation Awareness and Driving Performance

2014 ◽  
Vol 23 (1) ◽  
pp. 71-89 ◽  
Author(s):  
Myounghoon Jeon ◽  
Bruce N. Walker ◽  
Thomas M. Gable
Keyword(s):  
Cognitive Processes ◽  
Situation Awareness ◽  
Driving Performance ◽  
Conscious Awareness ◽  
Emotional States ◽  
Neutral State ◽  
Perceived Workload ◽  
Neutral Affect ◽  
The Relationship ◽  
Emotional Effects

Research has suggested that emotional states have critical effects on various cognitive processes, which are important components of situation awareness (Endsley, 1995b). Evidence from driving studies has also emphasized the importance of driver situation awareness for performance and safety. However, to date, little research has investigated the relationship between emotional effects and driver situation awareness. In our experiment, 30 undergraduates drove in a simulator after induction of either anger or neutral affect. Results showed that an induced angry state can degrade driver situation awareness as well as driving performance as compared to a neutral state. However, the angry state did not have an impact on participants' subjective judgment or perceived workload, which might imply that the effects of anger occurred below their level of conscious awareness. One of the reasons participants showed a lack of compensation for their deficits in performance might be that they were not aware of severe impacts of emotional effects on driving performance.

Infinity

2018 ◽  
Author(s):  
A.W. Moore
Keyword(s):  
Nineteenth Century ◽  
Conscious Awareness ◽  
Mathematical Study ◽  
Space And Time ◽  
Divine Perfection ◽  
To Come ◽  
The Relationship

The infinite is standardly conceived as that which is endless, unlimited, immeasurable. It also has theological connotations of absoluteness and perfection. From the dawn of civilization, it has held a special fascination: people have been captivated by the boundlessness of space and time, by the mystery of numbers going on forever, by the paradoxes of endless divisibility and by the riddles of divine perfection. The infinite is of profound importance to mathematics. Nevertheless, the relationship between the two has been a curiously ambivalent one. It is clear that mathematics in some sense presupposes the infinite, for instance in the fact that there is no largest integer. But the idea that the infinite should itself be an object of mathematical study has time and again been subjected to ridicule. In the nineteenth century this orthodoxy was challenged, with the advent of ‘transfinite arithmetic’. Many, however, have remained sceptical, believing that the infinite is inherently beyond our grasp. Perhaps their scepticism should be trained on the infinite itself: perhaps the concept is ultimately incoherent. It is certainly riddled with paradoxes. Yet we cannot simply jettison it. This is why the paradoxes are so acute. The roots of these paradoxes lie in our own finitude: it is self-conscious awareness of that finitude which gives us our initial sense of a contrasting infinite, and, at the same time, makes us despair of knowing anything about it, or having any kind of grasp of it. This creates a tension. We feel pressure to acknowledge the infinite, and we feel pressure not to. In trying to come to terms with the infinite, we are trying to come to terms with a basic conflict in ourselves.

Introduction

2020 ◽  
pp. 1-28
Author(s):  
Berit Brogaard ◽  
Dimitria Electra Gatzia
Keyword(s):  
Decision Making ◽  
Human Behavior ◽  
Visual Experience ◽  
Sensory Perception ◽  
Philosophy Of Art ◽  
Action Perception ◽  
Event Perception ◽  
Sensory Experiences ◽  
The Relationship

This volume explores questions not only related to traditional sensory perception, but also to proprioceptive, interoceptive, multisensory, and event perception, expanding traditional notions of the influence that conscious non-visual experience has on human behavior and rationality. Some essays investigate the role that emotions play in decision-making and agential perception and what this means for justifications of belief and knowledge; analyze the notion that some sensory experiences, such as touch, have epistemic privilege over others, as well as the relationship between perception and introspection, and the relationship between action perception and belief; and engage with topics in aesthetics and the philosophy of art, exploring the role that artworks can play in providing us with perceptional knowledge of emotions.

Consumer decision-making in a retail store: the role of mental imagery and gender difference

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Jung-Hwan Kim ◽  
Minjeong Kim ◽  
Jungmin Yoo ◽  
Minjung Park
Keyword(s):  
Decision Making ◽  
Mental Imagery ◽  
Decision Making Process ◽  
Consumer Decision Making ◽  
Consumer Decision ◽  
Content Type ◽  
Perceived Ownership ◽  
Decision Satisfaction ◽  
The Relationship

PurposeThe purpose of the study is to investigate how mental imagery evoked from sensory in-store experience influences consumer anticipatory emotion, perceived ownership and decision satisfaction which eventually impact positive consumer responses such as behavioural intent. In this study, gender difference is proposed as a moderator to completely understand the role of mental imagery in the in-store decision-making process.Design/methodology/approachUsing a market research agency in South Korea, an online survey was employed to collect data. A total of 455 useable respondents (men = 224 and women = 231) largely living in the two most populous provinces in South Korea (i.e. Seoul and Gyeonggi provinces) completed the survey. A number of path analyses were conducted to test hypotheses.FindingsThe results of the study showed that mental imagery evoked from sensory product experience played a critical part in facilitating the consumer decision-making process by influencing anticipatory emotion and perceived ownership. The relationship among anticipatory emotion, perceived ownership, decision satisfaction and behavioural intent was significant except for the relationship between perceived ownership and behavioural intent. This study further indicated that the way mental imagery influences the in-store decision-making process differs between men and women.Originality/valueThe effect of mental imagery in a physical retail context is largely ignored. This study addressed the crucial role of mental imagery in a physical apparel retail setting and examined its impact on consumer decision-making processes. By exploring how to enhance consumers' in-store sensory shopping experiences through mental imagery to influence their positive shopping outcomes, this study offers vital insights into how retailers operating physical stores can successfully utilize their stores.

Boron Doped Diamond: A Designer Electrode Material for the Twenty-First Century

2018 ◽  
Vol 11 (1) ◽  
pp. 463-484 ◽  
Author(s):  
Samuel J. Cobb ◽  
Zoe J. Ayres ◽  
Julie V. Macpherson
Keyword(s):  
Electrochemical Performance ◽  
First Century ◽  
Material Surface ◽  
Boron Doped Diamond ◽  
Diverse Range ◽  
Research Areas ◽  
Retinal Stimulation ◽  
Boron Doped ◽  
The Relationship

Boron doped diamond (BDD) is continuing to find numerous electrochemical applications across a diverse range of fields due to its unique properties, such as having a wide solvent window, low capacitance, and reduced resistance to fouling and mechanical robustness. In this review, we showcase the latest developments in the BDD electrochemical field. These are driven by a greater understanding of the relationship between material (surface) properties, required electrochemical performance, and improvements in synthetic growth/fabrication procedures, including material postprocessing. This has resulted in the production of BDD structures with the required function and geometry for the application of interest, making BDD a truly designer material. Current research areas range from in vivo bioelectrochemistry and neuronal/retinal stimulation to improved electroanalysis, advanced oxidation processes, supercapacitors, and the development of hybrid electrochemical-spectroscopic- and temperature-based technology aimed at enhancing electrochemical performance and understanding.

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