Nicholas Root
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View article: Exploring touch-colour associations in achromatopsia: A case study
Exploring touch-colour associations in achromatopsia: A case study Open
Crossmodal correspondences - systematic mappings between stimulus attributes in different modalities - are ubiquitous in the general population. For example, high-pitched (vs low-pitched) sounds are commonly associated with elevated (vs lo…
View article: SynesthesiaColorPicker: an open-source color picker for online synesthesia research
SynesthesiaColorPicker: an open-source color picker for online synesthesia research Open
Synesthesia is a neurological phenomenon in which healthy individuals experience additional, automatic, and consistent perceptions unrelated to veridical sensory input. For most (but not all) synesthetes, this additional sensation is a col…
View article: Touch-to-Color Cross-Modal Associations Are there Systematic Effects?
Touch-to-Color Cross-Modal Associations Are there Systematic Effects? Open
We replicate and extend findings on tactile-to-color cross-modal associations. We used nano-engineered material constructions, facilitating future cross-study comparisons on how tactile properties affect visual (color) associations. We obt…
View article: How “diagnostic” criteria interact to shape synesthetic behavior: The role of self-report and test–retest consistency in synesthesia research
How “diagnostic” criteria interact to shape synesthetic behavior: The role of self-report and test–retest consistency in synesthesia research Open
In the past few decades, researchers have established synesthesia as a genuine phenomenon, identified its characteristics (in particular, its automatic, specific and consistent nature), and developed "gold standard" inclusion criteria for …
View article: How “diagnostic” criteria interact to shape synesthetic behavior: the role of self-report and test-retest consistency in synesthesia research.
How “diagnostic” criteria interact to shape synesthetic behavior: the role of self-report and test-retest consistency in synesthesia research. Open
In the past few decades, researchers have established synesthesia as a genuine phenomenon, identified its characteristics (in particular, its automatic, specific and consistent nature), and developed “gold standard” inclusion criteria for …
View article: Decoupling Coldness and Softness in Tactile Wetness Perception Using Tunable Hydrogels
Decoupling Coldness and Softness in Tactile Wetness Perception Using Tunable Hydrogels Open
This study investigates the perception of tactile wetness, a complex sensation experienced by humans. Previous research has primarily focused on either thermal or mechanical cues separately, or has used textiles as stimuli whose parameters…
View article: Enhanced Dye‐Sensitized Mechanosensation Utilizing Pulsed and Digitally Modulated Light
Enhanced Dye‐Sensitized Mechanosensation Utilizing Pulsed and Digitally Modulated Light Open
The generation of pressure perturbations in matter stimulated by pulsed light is a method widely recognized as the photoacoustic or light‐induced thermoelastic effect. In a series of psychophysical experiments, the robustness of the tactil…
View article: Synaesthesia is linked to differences in music preference and musical sophistication and a distinctive pattern of sound-color associations
Synaesthesia is linked to differences in music preference and musical sophistication and a distinctive pattern of sound-color associations Open
Synaesthesia has often been linked to an artistic or creative temperament, but the nature of this link (and, hence, the possible underpinning mechanisms) are poorly understood. This study focusses primarily on people with synaesthesia who …
View article: Use of dye sensitizers for increased photoacoustic mechanosensation
Use of dye sensitizers for increased photoacoustic mechanosensation Open
The photoacoustic effect refers to the generation of pressure waves in matter stimulated by light[1]. In the context of radiology (i.e., photoacoustic imaging) waves generated by pulsed laser light are detected by an ultrasound transducer[…
View article: Synaesthesia is Linked to Differences in Music Preference and Musical Sophistication and a Distinctive Pattern of Sound-Colour Associations
Synaesthesia is Linked to Differences in Music Preference and Musical Sophistication and a Distinctive Pattern of Sound-Colour Associations Open
Synaesthesia has often been linked to an artistic or creative temperament, but the nature of this link (and, hence, the candidate underpinning mechanisms) are poorly understood. This study focusses primarily on people with synaesthesia who…
View article: Do the colors of your letters depend on your language? Language-dependent and universal influences on grapheme-color synesthesia in seven languages
Do the colors of your letters depend on your language? Language-dependent and universal influences on grapheme-color synesthesia in seven languages Open
Grapheme-color synesthetes experience graphemes as having a consistent color (e.g., "N is turquoise"). Synesthetes' specific associations (which letter is which color) are often influenced by linguistic properties such as phonetic similari…
View article: An open-source color picker for online synesthesia research.
An open-source color picker for online synesthesia research. Open
Synesthesia is a neurological phenomenon in which healthy individuals experience additional, automatic, and consistent perceptions unrelated to veridical sensory input. For most (but not all) synesthetes, this additional sensation is a col…
View article: SynesthesiaColorPicker: an open-source color picker for online synesthesia research
SynesthesiaColorPicker: an open-source color picker for online synesthesia research Open
Synesthesia is a neurological phenomenon in which healthy individuals experience additional, automatic, and consistent perceptions unrelated to veridical sensory input. For most (but not all) synesthetes, this additional sensation is a col…
View article: A Unifying Model of Grapheme-Color Associations in Synesthetes and Controls
A Unifying Model of Grapheme-Color Associations in Synesthetes and Controls Open
Grapheme-color synesthetes experience linguistic symbols as having a consistent color (e.g., “The letter R is burgundy.”). Intriguingly, certain letters tend to be associated with certain colors, and these biases are not random: numerous p…
View article: Grapheme–Color Synesthesia in an Abugida: a Bengali Case Study
Grapheme–Color Synesthesia in an Abugida: a Bengali Case Study Open
Grapheme–color synesthetes experience graphemes (e.g., letters of the alphabet) as having a specific, consistent color. Most studies of grapheme–color synesthesia have only examined synesthetes in English, leaving underexplored the questio…
View article: Electropneumotactile Stimulation: Multimodal Haptic Actuators Enabled by a Stretchable Conductive Polymer on Inflatable Pockets
Electropneumotactile Stimulation: Multimodal Haptic Actuators Enabled by a Stretchable Conductive Polymer on Inflatable Pockets Open
A type of haptic device is described that delivers two modes of stimulation simultaneously and at the same location on the skin. The two modes of stimulation are mechanical (delivered pneumatically by inflatable air pockets embedded within…
View article: Virtual Texture Generated Using Elastomeric Conductive Block Copolymer in a Wireless Multimodal Haptic Glove
Virtual Texture Generated Using Elastomeric Conductive Block Copolymer in a Wireless Multimodal Haptic Glove Open
Haptic devices are in general more adept at mimicking the bulk properties of materials than they are at mimicking the surface properties. Herein, a haptic glove is described which is capable of producing sensations reminiscent of three typ…
View article: Organic Haptics: Intersection of Materials Chemistry and Tactile Perception
Organic Haptics: Intersection of Materials Chemistry and Tactile Perception Open
The goal of the field of haptics is to create technologies that manipulate the sense of touch. In virtual and augmented reality, haptic devices are for touch what loudspeakers and RGB displays are for hearing and vision. Haptic systems tha…
View article: Distinct colours in the ‘synaesthetic colour palette’
Distinct colours in the ‘synaesthetic colour palette’ Open
In grapheme-colour synaesthesia, particular linguistic elements evoke particular colour sensations. Interestingly, when asked, non-synaesthetes can also associate colours to letters, and previous studies show that specific letter-to-colour…
View article: Echoes from the past: synaesthetic colour associations reflect childhood gender stereotypes
Echoes from the past: synaesthetic colour associations reflect childhood gender stereotypes Open
Grapheme–colour synaesthesia is a neurological phenomenon in which linguistic symbols evoke consistent colour sensations. Synaesthesia is believed to be influenced by both genetic and environmental factors, but how these factors interact t…
View article: Role of indentation depth and contact area on human perception of softness for haptic interfaces
Role of indentation depth and contact area on human perception of softness for haptic interfaces Open
This work provides a model for designing materials that humans perceive as soft based on material and geometric properties.
View article: Analysis Routine from Echoes from the past: synesthetic colour associations reflect childhood gender stereotypes
Analysis Routine from Echoes from the past: synesthetic colour associations reflect childhood gender stereotypes Open
R code to produce numbers/graphs from this paper
View article: Analysis Routine from Echoes from the past: synaesthetic colour associations reflect childhood gender stereotypes.
Analysis Routine from Echoes from the past: synaesthetic colour associations reflect childhood gender stereotypes. Open
R code to produce numbers/graphs from this paper
View article: Child data from Echoes from the past: synesthetic colour associations reflect childhood gender stereotypes
Child data from Echoes from the past: synesthetic colour associations reflect childhood gender stereotypes Open
De-identified, preprocessed child data
View article: dat_random_CIELuv.RDs from Distinct colours in the ‘synesthetic colour palette’
dat_random_CIELuv.RDs from Distinct colours in the ‘synesthetic colour palette’ Open
uniform sample in CIELuv (R datafile)
View article: Child data from Echoes from the past: synaesthetic colour associations reflect childhood gender stereotypes.
Child data from Echoes from the past: synaesthetic colour associations reflect childhood gender stereotypes. Open
De-identified, preprocessed child data
View article: What Language Tells Us About Synesthesia, What Synesthesia Tells Us About Language
What Language Tells Us About Synesthesia, What Synesthesia Tells Us About Language Open
Grapheme-color synesthesia is a neurological phenomenon in which graphemes, such as letters of the alphabet, evoke an additional, automatic, consistent sensation of color (e.g. “R is sky blue”). An as-yet unsolved question in the field of …
View article: Supplementary material from "Distinct colours in the ‘synesthetic colour palette’"
Supplementary material from "Distinct colours in the ‘synesthetic colour palette’" Open
In grapheme-colour synesthesia, particular linguistic elements evoke particular colour sensations. Interestingly, when asked, non-synesthetes can also associate colours to letters, and previous studies show that specific letter-to-colour a…
View article: Adult data from Echoes from the past: synaesthetic colour associations reflect childhood gender stereotypes.
Adult data from Echoes from the past: synaesthetic colour associations reflect childhood gender stereotypes. Open
De-identified, preprocessed adult data
View article: dat_palette.RDs from Distinct colours in the ‘synesthetic colour palette’
dat_palette.RDs from Distinct colours in the ‘synesthetic colour palette’ Open
syn and non-syn data (R datafile)