keyword
MENU ▼
Read by QxMD icon Read
search

Synaesthesia

keyword
https://www.readbyqxmd.com/read/28921774/modulating-vicarious-tactile-perception-with-transcranial-electrical-current-stimulation
#1
Natalie C Bowling, Michael J Banissy
Our capacity to share the experiences of others is a critical part of social behaviour. One process thought to be important for this is vicarious perception. Passively viewing touch activates some of the same network of brain regions as the direct experience of touch. This vicarious experience is usually implicit, but for some people, viewing touch evokes conscious tactile sensations (mirror-touch synaesthesia). Recent work has attempted to induce conscious vicarious touch in those that do not normally experience these sensations, using transcranial direct current stimulation (tDCS)...
September 16, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28919244/does-synaesthesia-age-changes-in-the-quality-and-consistency-of-synaesthetic-associations
#2
Julia Simner, Alberta Ipser, Rebecca Smees, James Alvarez
Developmental grapheme-colour synaesthesia is a rare condition in which colours become automatically paired with letters or digits in the minds of certain individuals during childhood, and remain paired into adulthood. Although synaesthesia is well understood in younger adults almost nothing is known about synaesthesia in aging. We present the first evidence that aging desaturates synaesthetic colours in the minds of older synaesthetes, and we show for the first time that aging affects the key diagnostic measure of synaesthesia (consistency of colours over time)...
September 14, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28816480/superior-olfactory-language-and-cognition-in-odor-color-synaesthesia
#3
Laura J Speed, Asifa Majid
Olfaction is often considered a vestigial sense in humans, demoted throughout evolution to make way for the dominant sense of vision. This perspective on olfaction is reflected in how we think and talk about smells in the West, with odor imagery and odor language reported to be difficult. In the present study we demonstrate odor cognition is superior in odor-color synaesthesia, where there are additional sensory connections to odor concepts. Synaesthesia is a neurological phenomenon in which input in 1 modality leads to involuntary perceptual associations...
August 17, 2017: Journal of Experimental Psychology. Human Perception and Performance
https://www.readbyqxmd.com/read/28732750/personality-predicts-the-vibrancy-of-colour-imagery-the-case-of-synaesthesia
#4
Shyla R Hossain, Julia Simner, Alberta Ipser
In this study we show that personality traits predict the physical qualities of mentally generated colours, using the case of synaesthesia. Developmental grapheme-colour synaesthetes have the automatic lifelong association of colours paired to letters or digits. Although these colours are internal mental constructs, they can be measured along physical dimensions such as saturation and luminance. The personality of synaesthetes can also be quantified using self-report questionnaires relating, for example, to the five major traits of Conscientiousness, Extraversion, Agreeableness, Neuroticism, and Openness to Experience...
July 1, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28524804/from-mirror-touch-synesthesia-to-models-of-vicarious-experience-a-reply-to-commentaries
#5
Jamie Ward, Michael J Banissy
In this reply to the eight commentaries to our article, we discuss three important challenges. First, we discuss the relationship of mirror-touch to other forms of synesthesia. We note that synesthetic experiences are generally not mistaken as veridical but this does not mean that they lack percept-like qualities. We acknowledge that neither Threshold Theory nor Self-Other Theory offer a direct account of other forms of synesthesia, although we discuss how the latter could. Second, we discuss alternative explanations...
June 5, 2017: Cognitive Neuroscience
https://www.readbyqxmd.com/read/28383962/digit-color-synaesthesia-only-enhances-memory-for-colors-in-a-specific-context-a-new-method-of-duration-thresholds-to-measure-serial-recall
#6
A Lina Teichmann, Mark R Nieuwenstein, Anina N Rich
For digit-color synaesthetes, digits elicit vivid experiences of color that are highly consistent for each individual. The conscious experience of synaesthesia is typically unidirectional: Digits evoke colors but not vice versa. There is an ongoing debate about whether synaesthetes have a memory advantage over non-synaesthetes. One key question in this debate is whether synaesthetes have a general superiority or whether any benefit is specific to a certain type of material. Here, we focus on immediate serial recall and ask digit-color synaesthetes and controls to memorize digit and color sequences...
April 6, 2017: Journal of Experimental Psychology. Human Perception and Performance
https://www.readbyqxmd.com/read/28369811/do-children-with-grapheme-colour-synaesthesia-show-cognitive-benefits
#7
Julia Simner, Angela E Bain
Grapheme-colour synaesthesia is characterized by conscious and consistent associations between letters and colours, or between numbers and colours (e.g., synaesthetes might see A as red, 7 as green). Our study explored the development of this condition in a group of randomly sampled child synaesthetes. Two previous studies (Simner & Bain, 2013, Frontiers in Human Neuroscience, 7, 603; Simner, Harrold, Creed, Monro, & Foulkes, 2009, Brain, 132, 57) had screened over 600 primary school children to find the first randomly sampled cohort of child synaesthetes...
March 29, 2017: British Journal of Psychology
https://www.readbyqxmd.com/read/28266503/atypical-sensory-sensitivity-as-a-shared-feature-between-synaesthesia-and-autism
#8
Jamie Ward, Claire Hoadley, James E A Hughes, Paula Smith, Carrie Allison, Simon Baron-Cohen, Julia Simner
Several studies have suggested that there is a link between synaesthesia and autism but the nature of that link remains poorly characterised. The present study considers whether atypical sensory sensitivity may be a common link between the conditions. Sensory hypersensitivity (aversion to certain sounds, touch, etc., or increased ability to make sensory discriminations) and/or hyposensitivity (desire to stimulate the senses , or a reduced response to sensory stimuli are a recently introduced diagnostic feature of autism spectrum conditions (ASC)...
March 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28025017/automatic-numerical-spatial-association-in-synaesthesia-an-fmri-investigation
#9
Isabel Arend, Sarit Ashkenazi, Kenneth Yuen, Shiran Ofir, Avishai Henik
A horizontal mental number line (MNL) is used to describe how quantities are represented across space. In humans, the neural correlates associated with such a representation are found in different areas of the posterior parietal cortex, especially, the intraparietal sulcus (IPS). In a phenomenon known as number-space synaesthesia, individuals visualise numbers in specific spatial locations. The experience of a MNL for number-space synaesthetes is explicit, idiosyncratic, and highly stable over time. It remains an open question whether the mechanisms underlying numerical-spatial association are shared by synaesthetes and nonsynaesthetes...
January 27, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28024253/language-use-statistics-and-prototypical-grapheme-colours-predict-synaesthetes-and-non-synaesthetes-word-colour-associations
#10
Stephanie C Goodhew, Evan Kidd
Synaesthesia is the neuropsychological phenomenon in which individuals experience unusual sensory associations, such as experiencing particular colours in response to particular words. While it was once thought the particular pairings between stimuli were arbitrary and idiosyncratic to particular synaesthetes, there is now growing evidence for a systematic psycholinguistic basis to the associations. Here we sought to assess the explanatory value of quantifiable lexical association measures (via latent semantic analysis; LSA) in the pairings observed between words and colours in synaesthesia...
February 2017: Acta Psychologica
https://www.readbyqxmd.com/read/28013176/the-prevalence-of-synaesthesia-depends-on-early-language-learning
#11
Marcus R Watson, Jan Chromý, Lyle Crawford, David M Eagleman, James T Enns, Kathleen A Akins
According to one theory, synaesthesia develops, or is preserved, because it helps children learn. If so, it should be more common among adults who faced greater childhood learning challenges. In the largest survey of synaesthesia to date, the incidence of synaesthesia was compared among native speakers of languages with transparent (easier) and opaque (more difficult) orthographies. Contrary to our prediction, native speakers of Czech (transparent) were more likely to be synaesthetes than native speakers of English (opaque)...
February 2017: Consciousness and Cognition
https://www.readbyqxmd.com/read/27937073/social-perception-in-synaesthesia-for-colour
#12
Agnieszka B Janik McErlean, Tirta Susilo, Constantin Rezlescu, Amy Bray, Michael J Banissy
Synaesthesia is a rare phenomenon in which stimulation in one modality (e.g., audition) evokes a secondary percept not associated with the first (e.g., colour). Prior work has suggested links between synaesthesia and other neurodevelopmental conditions that are linked to altered social perception abilities. With this in mind, here we sought to examine social perception abilities in grapheme-colour synaesthesia (where achromatic graphemes evoke colour experiences) by examining facial identity and facial emotion perception in synaesthetes and controls...
October 2016: Cognitive Neuropsychology
https://www.readbyqxmd.com/read/27893181/synaesthesia-lost-and-found-two-cases-of-person-and-music-colour-synaesthesia
#13
Francesca R Farina, Kevin J Mitchell, Richard A P Roche
Synaesthesia is a developmental condition involving cross-communication between sensory modalities or substreams whereby an inducer (e.g. a sound) automatically evokes a concurrent percept in another modality (e.g. a colour). Whether this condition arises due to atypical structural connectivity (e.g., between normally unconnected cortical areas) or altered neurochemistry remains a central question. We report the exceptional cases of two synaesthetes - subjects AB and CD - both of whom experience coloured auras around individuals, as well as coloured perceptions in response to music...
February 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/27553270/social-responsiveness-to-inanimate-entities-altered-white-matter-in-a-social-synaesthesia
#14
J Simner, M K Rehme, D A Carmichael, M E Bastin, E Sprooten, A M McIntosh, S M Lawrie, M Zedler
Judgments about personalities and social traits can be made by relatively brief exposure to animate living things. Here we show that unusual architecture in the microstructure of the human brain is related to atypical mental projections of personality and social structure onto things that are neither living nor animate. Our participants experience automatic, life-long and consistent crossmodal associations between language sequences (e.g., letters, numbers and days) and complex personifications (e.g., A is a businessman; 7 a good-natured woman)...
October 2016: Neuropsychologia
https://www.readbyqxmd.com/read/27515202/hypothesis-concerning-embodied-calendars-a-case-study-of-number-form-color-spreading-and-taste-color-synaesthesia
#15
V S Ramachandran, C Chunharas, Z Marcus
We propose a hypothesis concerning the neural basis of the mental 'calendar' we all carry around in our brains, based on observations we made on a 25year old 'projector synaesthete', EA, who displays some novel and instructive features. In addition to her grapheme-color synaesthesia, she has a circular 'calendar line', laid out vividly in front of her in the horizontal plane with December 31st passing through the middle of her chest and other months arranged in clockwise sequence ending with December on her right (July was 3 feet in front of her)...
September 2016: Medical Hypotheses
https://www.readbyqxmd.com/read/27490947/mirror-touch-synaesthesia-is-not-associated-with-heightened-empathy-and-can-occur-with-autism
#16
Simon Baron-Cohen, Emma Robson, Meng-Chuan Lai, Carrie Allison
Research has linked Mirror-Touch (MT) synaesthesia with enhanced empathy. We test the largest sample of MT synaesthetes to date to examine two claims that have been previously made: that MT synaesthetes (1) have superior empathy; and (2) only ever experience their MT synaesthesia in response to viewing a person being touched. Given that autism has been suggested to involve deficits in cognitive empathy, we also test two predictions: that MT synaesthetes should (3) be less likely than general population individuals without MT synaesthesia to have an autism spectrum condition (ASC), if MT is characterized by superior empathy; and (4) have fewer autistic traits...
2016: PloS One
https://www.readbyqxmd.com/read/27392215/the-emergence-of-synaesthesia-in-a-neuronal-network-model-via-changes-in-perceptual-sensitivity-and-plasticity
#17
Oren Shriki, Yaniv Sadeh, Jamie Ward
Synaesthesia is an unusual perceptual experience in which an inducer stimulus triggers a percept in a different domain in addition to its own. To explore the conditions under which synaesthesia evolves, we studied a neuronal network model that represents two recurrently connected neural systems. The interactions in the network evolve according to learning rules that optimize sensory sensitivity. We demonstrate several scenarios, such as sensory deprivation or heightened plasticity, under which synaesthesia can evolve even though the inputs to the two systems are statistically independent and the initial cross-talk interactions are zero...
July 2016: PLoS Computational Biology
https://www.readbyqxmd.com/read/27369097/the-structure-of-inter-individual-differences-in-visual-ability-evidence-from-the-general-population-and-synaesthesia
#18
Jamie Ward, Nicolas Rothen, Acer Chang, Ryota Kanai
This study considers how inter-individual differences in visual ability are structured. Visual ability could be a single entity (along the lines of general intelligence, or 'g'), or could be structured according to major anatomical or physiological pathways (dorsal v. ventral streams; magno- v. parvo-cellular systems); or may be a finer-grained mosaic of abilities. To test this, we employed seven visual psychophysical tests (generating 16 measures) on a large (100+) sample of neurotypical participants. A Varimax-rotated PCA (Principal Component Analysis) revealed a two-factor solution that broadly corresponds to a high and low spatial frequency division (consistent with a magno/parvo distinction)...
June 29, 2016: Vision Research
https://www.readbyqxmd.com/read/27344506/bridging-the-gap-synaesthesia-and-multisensory-processes
#19
EDITORIAL
Tessa M van Leeuwen, Sina A Trautmann-Lengsfeld, Mark T Wallace, Andreas K Engel, Micah M Murray
No abstract text is available yet for this article.
July 29, 2016: Neuropsychologia
https://www.readbyqxmd.com/read/27303282/toward-a-unified-social-motor-cognition-theory-of-understanding-mirror-touch-synaesthesia
#20
Shenbing Kuang
No abstract text is available yet for this article.
2016: Frontiers in Human Neuroscience
keyword
keyword
53258
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"