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https://www.readbyqxmd.com/read/29344909/flash-induced-forward-and-reverse-illusory-line-motion-in-offset-bars
#1
Sihang Han, Jeff P Hamm
Illusory line motion (ILM) refers to perception of motion in a bar that onsets or offsets all at once. When the bar onsets or offsets between two boxes after one of the boxes flashes, the bar appears to shoot out of the flashed box (flashILM). If the bar offsets during the flash, it appears to contract into the flashed box (reverse ILM; rILM). Onset bars do not show rILM. Moreover, rILM and flashILM are not correlated, indicating they are two different illusions. To date, rILM has only been studied using a 50-ms flash where the bar offsets 16...
January 17, 2018: Attention, Perception & Psychophysics
https://www.readbyqxmd.com/read/29289094/musical-and-linguistic-listening-modes-in-the-speech-to-song-illusion-bias-timing-perception-and-absolute-pitch-memory
#2
Emily Graber, Rhimmon Simchy-Gross, Elizabeth Hellmuth Margulis
The speech-to-song (STS) illusion is a phenomenon in which some spoken utterances perceptually transform to song after repetition [Deutsch, Henthorn, and Lapidis (2011). J. Acoust. Soc. Am. 129, 2245-2252]. Tierney, Dick, Deutsch, and Sereno [(2013). Cereb. Cortex. 23, 249-254] developed a set of stimuli where half tend to transform to perceived song with repetition and half do not. Those that transform and those that do not can be understood to induce a musical or linguistic mode of listening, respectively...
December 2017: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/29282487/temporal-ventriloquism-along-the-path-of-apparent-motion-speed-perception-under-different-spatial-grouping-principles
#3
Cansu Ogulmus, Merve Karacaoglu, Hulusi Kafaligonul
The coordination of intramodal perceptual grouping and crossmodal interactions plays a critical role in constructing coherent multisensory percepts. However, the basic principles underlying such coordinating mechanisms still remain unclear. By taking advantage of an illusion called temporal ventriloquism and its influences on perceived speed, we investigated how audiovisual interactions in time are modulated by the spatial grouping principles of vision. In our experiments, we manipulated the spatial grouping principles of proximity, uniform connectedness, and similarity/common fate in apparent motion displays...
December 28, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/29157413/incorporation-of-prosthetic-limbs-into-the-body-representation-of-amputees-evidence-from-the-crossed-hands-temporal-order-illusion
#4
Yuki Sato, Toshihiro Kawase, Kouji Takano, Charles Spence, Kenji Kansaku
Understanding how we consciously experience our bodies is a fundamental issue in both psychology and neuroscience. To date, the incorporation of nonbody objects into the body representation has been investigated extensively, and the incorporation of prosthetic arms in amputees has been demonstrated using the rubber hand illusion. In this study, we investigated the incorporation of prosthetic arms in amputees using the crossed hands illusion, in which successive somatosensory stimuli are delivered, one to each arm, at intervals of 300ms or less, and where arm crossing often causes inversion of perceived tactile temporal order...
2017: Progress in Brain Research
https://www.readbyqxmd.com/read/29100659/the-sander-parallelogram-illusion-dissociates-action-and-perception-despite-control-for-the-litany-of-past-confounds
#5
Robert L Whitwell, Melvyn A Goodale, Kate E Merritt, James T Enns
The two visual systems hypothesis proposes that human vision is supported by a occipito-temporal network for the conscious visual perception of the world, and a fronto-parietal network for visually-guided, object-directed actions. Two specific claims about the fronto-parietal network's role in sensorimotor control have generated much data and controversy: (1) the network relies primarily on the absolute metrics of target objects, which it rapidly transforms into effector-specific frames of reference to guide the fingers, hands, and limbs, and (2) the network is largely unaffected by scene-based information extracted by the occipito-temporal network for those same targets...
October 5, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/29094146/dynamic-tilt-illusion-induced-by-continuous-contextual-orientation-alternations
#6
Xiangyong Yuan, Xilei Zhang, Yi Jiang
In the classic tilt illusion, the perceived orientation of a center patch is shifted away from its oriented context. Additionally, a stronger illusion effect is yielded when the center patch is simultaneously rather than asynchronously presented with a constant context for a shorter duration. However, little is known about the temporal characteristic of the tilt illusion in a reverse situation in which a constant center patch is presented throughout while the contexts change. Therefore, we continuously alternated two opposite-oriented contexts and manipulated alternate speeds to examine how the tilt illusion would build up as a function of dynamic contextual alternation...
November 1, 2017: Journal of Vision
https://www.readbyqxmd.com/read/29090370/expectation-information-processing-and-subjective-duration
#7
Rhimmon Simchy-Gross, Elizabeth Hellmuth Margulis
In research on psychological time, it is important to examine the subjective duration of entire stimulus sequences, such as those produced by music (Teki, Frontiers in Neuroscience, 10, 2016). Yet research on the temporal oddball illusion (according to which oddball stimuli seem longer than standard stimuli of the same duration) has examined only the subjective duration of single events contained within sequences, not the subjective duration of sequences themselves. Does the finding that oddballs seem longer than standards translate to entire sequences, such that entire sequences that contain oddballs seem longer than those that do not? Is this potential translation influenced by the mode of information processing-whether people are engaged in direct or indirect temporal processing? Two experiments aimed to answer both questions using different manipulations of information processing...
October 31, 2017: Attention, Perception & Psychophysics
https://www.readbyqxmd.com/read/29084214/a-systems-level-approach-to-temporal-expression-dynamics-in-drosophila-reveals-clusters-of-long-term-memory-genes
#8
Julianna Bozler, Balint Z Kacsoh, Hao Chen, William E Theurkauf, Zhiping Weng, Giovanni Bosco
The ability to integrate experiential information and recall it in the form of memory is observed in a wide range of taxa, and is a hallmark of highly derived nervous systems. Storage of past experiences is critical for adaptive behaviors that anticipate both adverse and positive environmental factors. The process of memory formation and consolidation involve many synchronized biological events including gene transcription, protein modification, and intracellular trafficking: However, many of these molecular mechanisms remain illusive...
October 2017: PLoS Genetics
https://www.readbyqxmd.com/read/29082527/time-touch-and-temperature-affect-perceived-finger-position-and-ownership-in-the-grasp-illusion
#9
Martin E Héroux, Nicolas Bayle, Annie A Butler, Simon C Gandevia
Perceived body position and ownership are fundamental to our ability to sense and interact with the world. Previous work indicates that temporally congruent, repetitive multisensory stimuli are needed to alter the sense of body ownership. In the present study 30 subjects passively grasped an artificial rubber finger with their left index and thumb while their right index finger, located 12 cm below, was lightly clamped. Fingers with varied physical characteristics were also passively grasped to determine how these characteristics influenced perceived body position and ownership...
October 29, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/29075665/memristive-stochastic-plasticity-enables-mimicking-of-neural-synchrony-memristive-circuit-emulates-an-optical-illusion
#10
Marina Ignatov, Martin Ziegler, Mirko Hansen, Hermann Kohlstedt
The human brain is able to integrate a myriad of information in an enormous and massively parallel network of neurons that are divided into functionally specialized regions such as the visual cortex, auditory cortex, or dorsolateral prefrontal cortex. Each of these regions participates as a context-dependent, self-organized, and transient subnetwork, which is shifted by changes in attention every 0.5 to 2 s. This leads to one of the most puzzling issues in cognitive neuroscience, well known as the "binding problem...
October 2017: Science Advances
https://www.readbyqxmd.com/read/29030557/heading-representations-in-primates-are-compressed-by-saccades
#11
Frank Bremmer, Jan Churan, Markus Lappe
Perceptual illusions help to understand how sensory signals are decoded in the brain. Here we report that the opposite approach is also applicable, i.e., results from decoding neural activity from monkey extrastriate visual cortex correctly predict a hitherto unknown perceptual illusion in humans. We record neural activity from monkey medial superior temporal (MST) and ventral intraparietal (VIP) area during presentation of self-motion stimuli and concurrent reflexive eye movements. A heading-decoder performs veridically during slow eye movements...
October 13, 2017: Nature Communications
https://www.readbyqxmd.com/read/29018230/affective-touch-enhances-self-face-recognition-during-multisensory-integration
#12
Elena Panagiotopoulou, Maria Laura Filippetti, Manos Tsakiris, Aikaterini Fotopoulou
Multisensory integration is a powerful mechanism for constructing body awareness and key for the sense of selfhood. Recent evidence has shown that the specialised C tactile modality that gives rise to feelings of pleasant, affective touch, can enhance the experience of body ownership during multisensory integration. Nevertheless, no study has examined whether affective touch can also modulate psychological identification with our face, the hallmark of our identity. The current study used the enfacement illusion paradigm to investigate the role of affective touch in the modulation of self-face recognition during multisensory integration...
October 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28980607/-metavestibular-disorders-and-disorders-of-higher-vestibular-function
#13
M V Zamergrad, O S Levin
Vertigo, instability, oscillopsia and concomitant autonomic disorders are classical and well-known symptoms of vestibular disorders. At the same time, recent studies suggest that there are more complicated vestibular dysfunctions caused by the cortical projections of the vestibular system. The central vestibular system includes parietal temporal cortex and insular, anterior intraparietal sulcus, posterior parietal and medial parts of the superior temporal gyrus, singular gyrus retrosplenial cortex, hippocampus and parahippocampal area...
2017: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/28961523/oscillatory-brain-mechanisms-of-the-hypnotically-induced-out-of-body-experience
#14
Maor Zeev-Wolf, Yair Dor-Ziderman, Abraham Goldstein, Omer Bonne, Eitan G Abramowitz
One of the most challenging questions regarding the nature and neural basis of consciousness is the embodied dimension of the phenomenon, that is, feeling located within the body and viewing the world from that spatial perspective. Current theories in neurophysiology highlight the active role of multisensory and sensorimotor integration in supporting self-location and self-perspective, and propose the right temporal-parietal-junction (rTPJ) as a key area for such function. These theories are based mainly on findings from two experimental paradigms: manipulation of bottom-up multisensory information integration regarding one's body location (full-body illusion), or direct and invasive manipulation disrupting brain activity at the rTPJ...
August 31, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28930766/palinacousis-palinacousis-seven-new-cases
#15
Madeline C Fields, Lara V Marcuse, Ji-Yeoun Yoo, Saadi Ghatan
PURPOSE: Palinacousis is an auditory illusion of sound persisting or repeating after the cessation of an auditory stimulation. Up until now, approximately 32 cases have been reported. The purpose of this study is to describe an additional seven cases of palinacousis and review our understanding of audition and palinacousis. METHODS: Patients seen in the epilepsy clinic or admitted to the Epilepsy Monitoring Unit (EMU) at The Mount Sinai Hospital who experienced palinacousis were included...
September 15, 2017: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
https://www.readbyqxmd.com/read/28923963/mistiming-of-thought-and-perception-predicts-delusionality
#16
Adam Bear, Rebecca G Fortgang, Michael V Bronstein, Tyrone D Cannon
The timing of thoughts and perceptions plays an essential role in belief formation. Just as people can experience in-the-moment perceptual illusions, however, they can also be deceived about how events unfold in time. Here, we consider how a particular type of temporal distortion, in which the apparent future influences "earlier" events in conscious awareness, might affect people's most fundamental beliefs about themselves and the world. Making use of a task that has been shown to elicit such reversals in the temporal experience of prediction and observation, we find that people who are more prone to think that they predicted an event that they actually already observed are also more likely to report holding delusion-like beliefs...
October 3, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28900289/spatiotemporal-brain-dynamics-of-auditory-temporal-assimilation
#17
Naruhito Hironaga, Takako Mitsudo, Mariko Hayamizu, Yoshitaka Nakajima, Hiroshige Takeichi, Shozo Tobimatsu
Time is a fundamental dimension, but millisecond-level judgments sometimes lead to perceptual illusions. We previously introduced a "time-shrinking illusion" using a psychological paradigm that induces auditory temporal assimilation (ATA). In ATA, the duration of two successive intervals (T1 and T2), marked by three auditory stimuli, can be perceived as equal when they are not. Here, we investigate the spatiotemporal profile of human temporal judgments using magnetoencephalography (MEG). Behavioural results showed typical ATA: participants judged T1 and T2 as equal when T2 - T1 ≤ +80 ms...
September 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28798718/vestibular-modulation-of-sympathetic-nerve-activity-to-muscle-and-skin-in-humans
#18
REVIEW
Elie Hammam, Vaughan G Macefield
We review the existence of vestibulosympathetic reflexes in humans. While several methods to activate the human vestibular apparatus have been used, galvanic vestibular stimulation (GVS) is a means of selectively modulating vestibular afferent activity via electrodes over the mastoid processes, causing robust vestibular illusions of side-to-side movement. Sinusoidal GVS (sGVS) causes partial entrainment of sympathetic outflow to muscle and skin. Modulation of muscle sympathetic nerve activity (MSNA) from vestibular inputs competes with baroreceptor inputs, with stronger temporal coupling to the vestibular stimulus being observed at frequencies remote from the cardiac frequency; "super entrainment" was observed in some individuals...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28701558/modulation-frequency-as-a-cue-for-auditory-speed-perception
#19
Irene Senna, Cesare V Parise, Marc O Ernst
Unlike vision, the mechanisms underlying auditory motion perception are poorly understood. Here we describe an auditory motion illusion revealing a novel cue to auditory speed perception: the temporal frequency of amplitude modulation (AM-frequency), typical for rattling sounds. Naturally, corrugated objects sliding across each other generate rattling sounds whose AM-frequency tends to directly correlate with speed. We found that AM-frequency modulates auditory speed perception in a highly systematic fashion: moving sounds with higher AM-frequency are perceived as moving faster than sounds with lower AM-frequency...
July 12, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28687328/representing-dynamic-stimulus-information-during-occlusion
#20
Jim Maarseveen, Chris L E Paffen, Frans A J Verstraten, Hinze Hogendoorn
Human observers maintain a representation of the visual features of objects when they become occluded. This representation facilitates the interpretation of occluded events and allows us to quickly identify objects upon reappearing. Here we investigated whether visual features that change over time are also represented during occlusion. To answer this question we used an illusion from the time perception domain in which the perceived duration of an event increases as its temporal frequency content increases...
September 2017: Vision Research
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