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Perception

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https://www.readbyqxmd.com/read/28622760/fawcett-j-m-risko-e-f-kingstone-a-eds-the-handbook-of-attention-fawcett-j-m-risko-e-f-kingstone-a-eds-the-handbook-of-attention-cambridge-ma-usa-mit-press-2015-696-pp-isbn-9780262029698-%C3%A2-57-95-hardcover
#1
https://www.readbyqxmd.com/read/28622759/catching-audiovisual-interactions-with-a-first-person-fisherman-video-game
#2
Yile Sun, Timothy J Hickey, Barbara Shinn-Cunningham, Robert Sekuler
The human brain is excellent at integrating information from different sources across multiple sensory modalities. To examine one particularly important form of multisensory interaction, we manipulated the temporal correlation between visual and auditory stimuli in a first-person fisherman video game. Subjects saw rapidly swimming fish whose size oscillated, either at 6 or 8 Hz. Subjects categorized each fish according to its rate of size oscillation, while trying to ignore a concurrent broadband sound seemingly emitted by the fish...
July 2017: Perception
https://www.readbyqxmd.com/read/28622758/on-the-ecological-validity-of-computer-displays
#3
Alan Gilchrist
No abstract text is available yet for this article.
July 2017: Perception
https://www.readbyqxmd.com/read/28622757/stationary-objects-flashed-periodically-appear-to-move-during-smooth-pursuit-eye-movement
#4
Frédéric Gosselin, Simon Faghel-Soubeyrand
We discovered that a white disc flashed twice at the same location appears to move during smooth pursuit eye tracking in the direction opposite to that of the eye movement. We called this novel phenomenon movement-induced apparent motion (MIAM). Using the method of constant stimuli, we measured the required displacement of the second appearance of the disc in the pursuit direction to null the effect during the closed-loop stage of smooth pursuit eye tracking. We observed a strong linear relationship between the points of subjective stationarity and the inter-stimuli intervals for four smooth pursuit eye movement speeds...
July 2017: Perception
https://www.readbyqxmd.com/read/28622756/effects-of-implied-motion-and-facing-direction-on-positional-preferences-in-single-object-pictures
#5
Stephen E Palmer, Thomas A Langlois
Palmer, Gardner, and Wickens studied aesthetic preferences for pictures of single objects and found a strong inward bias: Right-facing objects were preferred left-of-center and left-facing objects right-of-center. They found no effect of object motion (people and cars showed the same inward bias as chairs and teapots), but the objects were not depicted as moving. Here we measured analogous inward biases with objects depicted as moving with an implied direction and speed by having participants drag-and-drop target objects into the most aesthetically pleasing position...
July 2017: Perception
https://www.readbyqxmd.com/read/28622755/cross-sensory-correspondences-heaviness-is-dark-and-low-pitched
#6
Peter Walker, Gabrielle Scallon, Brian Francis
Everyday language reveals how stimuli encoded in one sensory feature domain can possess qualities normally associated with a different domain (e.g., higher pitch sounds are bright, light in weight, sharp, and thin). Such cross-sensory associations appear to reflect crosstalk among aligned (corresponding) feature dimensions, including brightness, heaviness, and sharpness. Evidence for heaviness being one such dimension is very limited, with heaviness appearing primarily as a verbal associate of other feature contrasts (e...
July 2017: Perception
https://www.readbyqxmd.com/read/28523985/hallucination-consciousness-illusion
#7
Kai Hamburger, Katharina Graben, Hartmut Neuf
No abstract text is available yet for this article.
June 2017: Perception
https://www.readbyqxmd.com/read/28523983/ear-advantage-for-musical-location-and-relative-pitch-effects-of-musical-training-and-attention
#8
Joanna L Hutchison, Timothy L Hubbard, Nicholas A Hubbard, Bart Rypma
Trained musicians have been found to exhibit a right-ear advantage for high tones and a left-ear advantage for low tones. We investigated whether this right/high, left/low pattern of musical processing advantage exists in listeners who had varying levels of musical experience, and whether such a pattern might be modulated by attentional strategy. A dichotic listening paradigm was used in which different melodic sequences were presented to each ear, and listeners attended to (a) the left ear or the right ear or (b) the higher pitched tones or the lower pitched tones...
June 2017: Perception
https://www.readbyqxmd.com/read/28427308/larger-stimuli-require-longer-processing-time-for-perception
#9
Ryota Kanai, Edwin S Dalmaijer, Maxine T Sherman, Genji Kawakita, Chris L E Paffen
The time it takes for a stimulus to reach awareness is often assessed by measuring reaction times (RTs) or by a temporal order judgement (TOJ) task in which perceived timing is compared against a reference stimulus. Dissociations of RT and TOJ have been reported earlier in which increases in stimulus intensity such as luminance intensity results in a decrease of RT, whereas perceived perceptual latency in a TOJ task is affected to a lesser degree. Here, we report that a simple manipulation of stimulus size has stronger effects on perceptual latency measured by TOJ than on motor latency measured by RT tasks...
May 2017: Perception
https://www.readbyqxmd.com/read/28325138/assessment-of-olfactory-memory-in-olfactory-dysfunction
#10
Kathrin Kollndorfer, Johanna Reichert, Josephine Braunsteiner, Veronika Schöpf
To assess all clinically relevant components of olfactory perception, examinations for olfactory sensitivity, discrimination, and identification are performed. Besides the standard perceptual test battery, episodic olfactory memory might offer additional information about olfactory abilities relative to these standard clinical tests. As both olfactory deficits and memory deficits are early symptoms in neurodegenerative disorders, olfactory memory may be of particular interest. However, to date little is known about episodic olfactory memory performance in patients with decreased olfactory function...
March 2017: Perception
https://www.readbyqxmd.com/read/28325137/twenty-shades-of-chemosensory-perception
#11
Johan N Lundström, Artin Arshamian, Jonas K Olofsson
No abstract text is available yet for this article.
March 2017: Perception
https://www.readbyqxmd.com/read/28118781/caffeine-bitterness-is-related-to-daily-caffeine-intake-and-bitter-receptor-mrna-abundance-in-human-taste-tissue
#12
COMPARATIVE STUDY
Sarah V Lipchock, Andrew I Spielman, Julie A Mennella, Corrine J Mansfield, Liang-Dar Hwang, Jennifer E Douglas, Danielle R Reed
We investigated whether the abundance of bitter receptor mRNA expression from human taste papillae is related to an individual's perceptual ratings of bitter intensity and habitual intake of bitter drinks. Ratings of the bitterness of caffeine and quinine and three other bitter stimuli (urea, propylthiouracil, and denatonium benzoate) were compared with relative taste papilla mRNA abundance of bitter receptors that respond to the corresponding bitter stimuli in cell-based assays ( TAS2R4, TAS2R10, TAS2R38, TAS2R43, and TAS2R46)...
March 2017: Perception
https://www.readbyqxmd.com/read/28103755/what-makes-a-better-smeller
#13
REVIEW
Asifa Majid, Laura Speed, Ilja Croijmans, Artin Arshamian
Olfaction is often viewed as difficult, yet the empirical evidence suggests a different picture. A closer look shows people around the world differ in their ability to detect, discriminate, and name odors. This gives rise to the question of what influences our ability to smell. Instead of focusing on olfactory deficiencies, this review presents a positive perspective by focusing on factors that make someone a better smeller. We consider three driving forces in improving olfactory ability: one's biological makeup, one's experience, and the environment...
March 2017: Perception
https://www.readbyqxmd.com/read/28094658/effects-of-negative-affectivity-and-odor-valence-on-chemosensory-and-symptom-perception-and-perceived-ability-to-focus-on-a-cognitive-task
#14
Steven Nordin, Lina Aldrin, Anna-Sara Claeson, Linus Andersson
The aim was to gain understanding for the impact of negative affectivity (NA) and odor valance on perceptual aspects during low-level odorous exposure. Fifty-five young adults who were either relatively low or high in NA (anxiety, depression, and somatization) were randomized for exposure to either limonene (pleasant odor) or pyridine (unpleasant odor). In an exposure chamber, they took part in baseline, blank and stable exposure sessions, during which they rated odor intensity, impact on ability to focus on an imagined cognitive task, and intensity of symptoms...
March 2017: Perception
https://www.readbyqxmd.com/read/28084905/relative-contribution-of-odour-intensity-and-valence-to-moral-decisions
#15
Cinzia Cecchetto, Raffaella Ida Rumiati, Valentina Parma
Meta-analytic evidence showed that the chemical senses affect moral decisions. However, how odours impact on morality is currently unclear. Through a set of three studies, we assess whether and how odour intensity biases moral choices (Study 1a), its psychophysiological responses (Study 1b), as well as the behavioural and psychophysiological effects of odour valence on moral choices (Study 2). Study 1a suggests that the presence of an odour plays a role in shaping moral choice. Study 1b reveals that of two iso-pleasant versions of the same neutral odour, only the one presented sub-threshold (vs...
March 2017: Perception
https://www.readbyqxmd.com/read/28077013/disgust-related-olfactory-processing-the-role-of-gender-and-trait-disgust
#16
Anne Schienle, Veronika Schöpf
For the rejection of disgusting and potentially health-threatening food, the sense of smell plays a critical role. We conducted two experiments in order to investigate the role of gender and trait disgust (the temporally stable tendency to experience disgust across different situations) on disgust-related olfactory processing. A total of 40 men and women (Study 1), as well as a group of women divided according to high versus low trait disgust (Study 2, n = 59), were compared with regard to their odor thresholds for carbon disulfide (which smells like spoiled food) and a control stimulus ( n-butanol)...
March 2017: Perception
https://www.readbyqxmd.com/read/28073304/the-impact-of-stress-on-odor-perception
#17
Matthias Hoenen, Oliver T Wolf, Bettina M Pause
The olfactory system and emotional systems are highly intervened and share common neuronal structures. The current study investigates whether emotional (e.g., anger and fear) and physiological (saliva cortisol) stress responses are associated with odor identification ability and hedonic odor judgments (intensity, pleasantness, and unpleasantness). Nineteen men participated in the modified Trier Social Stress Test (TSST) and a control session (cycling on a stationary bike). The physiological arousal was similar in both sessions...
March 2017: Perception
https://www.readbyqxmd.com/read/28056659/olfactory-functions-in-adults-with-autism-spectrum-disorders
#18
Rebecka N Addo, Stefan Wiens, Marie Nord, Maria Larsson
Autism spectrum disorders (ASD) are often characterized by atypical sensory behavior (hyper- or hyporeactivity) although evidence is scarce regarding olfactory abilities in ASD; 16 adults with high-functioning ASD (mean age: 38.2, SD: 9.7) and 14 healthy control subjects (mean age: 42.0 years, SD: 12.5) were assessed in odor threshold, free and cued odor identification, and perceived pleasantness, intensity, and edibility of everyday odors. Although results showed no differences between groups, the Bayes Factors (close to 1) suggested that the evidence for no group differences on the threshold and identification tests was inconclusive...
March 2017: Perception
https://www.readbyqxmd.com/read/28056656/age-and-pubertal-status-related-changes-in-reports-of-perception-of-personal-odors
#19
Lenka Martinec Nováková, Dagmar Plotěná, Jan Havlíček
As previously suggested, preferences for kin body odor might undergo an adaptive change over the course of puberty in order to avoid potential inbreeding, resulting in aversion to body odor of the opposite-gender kin as individuals mature sexually. However, studies based on mutual body odor aversion are rather inconclusive. We therefore investigated whether children's reports of individuals smelling good or bad differed as a function of age and pubertal status. We asked 219 children (94 male) aged 10 to 15 years to assess their pubertal development using a standardized measure and to name individuals they thought smelled good or bad...
March 2017: Perception
https://www.readbyqxmd.com/read/28056655/age-related-changes-in-gustatory-homeostatic-reward-and-memory-processing-of-sweet-taste-in-the-metabolic-syndrome-an-fmri-study
#20
Aaron Jacobson, Erin Green, Lori Haase, Jacquelyn Szajer, Claire Murphy
Age affects the human taste system at peripheral and central levels. Metabolic syndrome is a constellation of risk factors (e.g., abdominal obesity and hypertension) that co-occur, increase with age, and heighten risk for cardiovascular disease, diabetes, and cognitive decline. Little is known about how age, metabolic syndrome, and hunger state interact to influence how the brain processes information about taste. We investigated brain activation during the hedonic evaluation of a pleasant, nutritive stimulus (sucrose) within regions critical for taste, homeostatic energy regulation, and reward, as a function of the interactions among age, metabolic syndrome, and hunger condition...
March 2017: Perception
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