Dr Ramakrishna Chakravarthi
Senior Lecturer
- About
-
- Email Address
- rama@abdn.ac.uk
- Telephone Number
- +44 (0)1224 272243
- Office Address
School of Psychology
William Guild Building Room S7
Kings College
Old Aberdeen AB24 3FX
- School/Department
- School of Psychology
Internal Memberships
- Undergraduate Exams Officer
- PS3524 (Cognitive Neuroscience) course coordinator
- EEG lab coordinator
- Organiser of Perception and Attention group meetings (with Dr Nika Adamian)
- Research
-
Research Overview
- Neural mechanisms in visual perception, numerosity and attention
- Object recognition: crowding and categorisation
- Time perception
- Intentionality and visual awareness
- Teaching
-
Teaching Responsibilities
Level 1: - Introductory Psychology II: Evolutionary Psychology module
- Introduction to Biological Sciences: Consciousness module
Level 2: Perception Level 3: - Methodology: Semester long research projects (5-6 students each semester)
- Cognitive Neuroscience
- Level 3 Perception tutorials
Level 4: - Senior honours (research-based) thesis (6-7 students each year)
- Sixth Century Course on Consciousness (Levels 3 and 4)
- Critical Review
Masters: - MRes Bayesian Statistics
- MSc Statistics tutorials
- MRes and MSc thesis supervision
Others: PhD Supervision - Publications
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Page 1 of 1 Results 1 to 47 of 47
The time course of Temporal Binding in social and nonsocial interactions
Psychonomic Bulletin and ReviewContributions to Journals: ArticlesNeural and behavioral signatures of the multidimensionality of manipulable object processing
Communications Biology, vol. 6, no. 1, 940Contributions to Journals: ArticlesFundamental units of numerosity estimation
Cognition, vol. 239, 105565Contributions to Journals: ArticlesThe effect of stimulus similarity in the Eriksen Flanker Task
Vision Sciences Society (VSS)Contributions to Conferences: Abstracts- [ONLINE] DOI: https://doi.org/10.1167/jov.23.9.5137
Inner-outer asymmetry in the Eriksen f lanker task
European Conference of Visual Perception (2022), pp. 180-181Contributions to Conferences: Abstracts- [ONLINE] DOI: https://doi.org/10.1177/03010066221141167
Visual field asymmetries in numerosity processing
Attention, Perception, and Psychophysics, vol. 84, no. 8, pp. 2607-2622Contributions to Journals: ArticlesThe time course of social and non-social implicit Sense of Agency
Working Papers: Preprint Papers- [ONLINE] DOI: https://doi.org/10.21203/rs.3.rs-2097214/v1
Effects of Spatial Arrangement of Flankers in the Eriksen Flanker task
Scottish Vision Group (SVG) 2022Contributions to Conferences: Abstracts- [ONLINE] DOI: https://doi.org/10.3390/vision6040057
Masking, crowding and grouping: Connecting low and mid-level vision
Journal of Vision, vol. 22, no. 2, 7Contributions to Journals: ArticlesCharacterizing the in-out asymmetry in visual crowding
Journal of Vision, vol. 21, no. 11, 10Contributions to Journals: ArticlesEmergence of crowding: the role of contrast and orientation salience
Journal of Vision, vol. 21, no. 11, pp. 1-21Contributions to Journals: ArticlesAge-related changes in low and midlevel vision: assessing the information degradation and neural inhibition accounts
Perception, vol. 50, no. 6, pp. 591-592Contributions to Journals: Abstracts- [ONLINE] DOI: https://doi.org/10.1177/03010066211008143
Social Agency as a Continuum
Psychonomic Bulletin and Review, vol. 28, pp. 434-453Contributions to Journals: ArticlesSubitizing object parts reveals a second stage of individuation
Psychonomic Bulletin and Review, vol. 28, pp. 476-486Contributions to Journals: ArticlesA simple rule to describe interactions between visual categories
European Journal of Neuroscience, vol. 52, no. 12, pp. 4639-4666Contributions to Journals: Articles- [ONLINE] DOI: https://doi.org/10.1111/ejn.14890
- [OPEN ACCESS] http://aura.abdn.ac.uk/bitstream/2164/14748/1/ejn.14890.pdf
- [ONLINE] View publication in Scopus
Too little, too late, and in the wrong place: Alpha band activity does not reflect an active mechanism of selective attention
Neuroimage, vol. 219, 117006Contributions to Journals: ArticlesResearch Plan - How gaze is deployed in visual target choice and how we identify if like-wise choices are human- or computer-generated when observing and interacting
EPS Online 2020Contributions to Conferences: Posters- [ONLINE] DOI: https://doi.org/10.17605/OSF.IO/GUQWJ
Crowding in humans is unlike that in convolutional neural networks
Neural Networks, vol. 126, pp. 262-274Contributions to Journals: ArticlesClustering leads to underestimation of numerosity, but crowding is not the cause
Cognition, vol. 198, 104195Contributions to Journals: ArticlesResponse selection modulates crowding: a cautionary tale for invoking top-down explanations
Attention, Perception & Psychophysics, vol. 82, no. 4, pp. 1763-1778Contributions to Journals: ArticlesThe eye that binds: Feature integration is not disrupted by saccadic eye movements
Attention, Perception & Psychophysics, vol. 82, pp. 533-549Contributions to Journals: ArticlesNeural Correlates of Motion Perception
i-Perception, vol. 10, no. 14-15Contributions to Journals: Abstracts- [ONLINE] DOI: https://doi.org/10.1177/2041669519854233
Two’s company, three’s a crowd: Individuation is necessary for object recognition
Cognition, vol. 184, pp. 69-82Contributions to Journals: ArticlesCritical resolution: A superior measure of crowding
Vision Research, vol. 153, pp. 13-23Contributions to Journals: ArticlesDoes Self-Prioritisation Affect Perceptual Processes?
Scottish Vision Group Meeting, 2017, pp. 15-15Contributions to Journals: Abstracts- [ONLINE] DOI: https://doi.org/10.1177/2041669517709809
- [OPEN ACCESS] http://aura.abdn.ac.uk/bitstream/2164/10825/1/2041669517709809.pdf
Does self-prioritization affect perceptual processes?
Visual Cognition, vol. 25, no. 1-3, pp. 381-398Contributions to Journals: Articles- [ONLINE] DOI: https://doi.org/10.1080/13506285.2017.1323813
- [OPEN ACCESS] http://aura.abdn.ac.uk/bitstream/2164/10466/2/Reuther_2017_manuscript_with_figures.pdf
- [OPEN ACCESS] http://aura.abdn.ac.uk/bitstream/2164/10466/1/Reuther_2017_supplementary_material_with_fig.pdf
- [ONLINE] View publication in Scopus
Target discrimination is not affected by distractor expectation
Perception, vol. 45, no. S2, pp. 227Contributions to Journals: Abstracts- [ONLINE] DOI: https://doi.org/10.1177/0301006616671273
Combining S-cone and luminance signals adversely affects discrimination of objects within backgrounds
Scientific Reports, vol. 6, pp. 1-10Contributions to Journals: Articles- [ONLINE] DOI: https://doi.org/10.1038/srep20504
- [OPEN ACCESS] http://aura.abdn.ac.uk/bitstream/2164/5521/1/srep20504.pdf
Category effect in visual crowding= feature differences plus overlap differences
The Scottish Vision Group (SVG) Meeting 2015Contributions to Journals: AbstractsCan anticipating distractors influence visual object recognition accuracy?
The Scottish Vision Group (SVG) 2016, pp. 15Contributions to Conferences: AbstractsThe temporal dynamics of visual processing in multiple sclerosis
Applied Neuropsychology. Adult, vol. 23, no. 2, pp. 133-140Contributions to Journals: Articles- [ONLINE] DOI: https://doi.org/10.1080/23279095.2015.1020157
Category effect in visual crowding = feature differences + overlap differences
The Scottish Vision Group (SVG) Meeting 2015, pp. 20Contributions to Conferences: AbstractsHigher-level effects in crowding falter when low-level attributes are controlled for
38th European Conference on Visual Perception (ECVP) 2015 Liverpool, pp. 182-183Contributions to Conferences: AbstractsThe Bouma law of crowding, revised: Critical spacing is equal across parts, not objects
Journal of Vision, vol. 14, no. 6, 10Contributions to Journals: Articles- [ONLINE] http://www.journalofvision.org/content/14/6/10.full
- [ONLINE] DOI: https://doi.org/10.1167/14.6.10
Categorical membership modulates crowding: evidence from characters
Journal of Vision, vol. 14, no. 6, pp. 1-13Contributions to Journals: Articles- [ONLINE] http://www.journalofvision.org/content/14/6/5.full
- [ONLINE] DOI: https://doi.org/10.1167/14.6.5
The temporal evolution of coarse location coding of objects: evidence for feedback
Journal of Cognitive Neuroscience, vol. 26, no. 10, pp. 2370-2384Contributions to Journals: Articles- [ONLINE] DOI: https://doi.org/10.1162/jocn_a_00644
For whom the bell tolls: periodic reactivation of sensory cortex in the gamma band as a substrate of visual working memory maintenance
Frontiers in Human Neuroscience, vol. 8, 696Contributions to Journals: Articles- [ONLINE] DOI: https://doi.org/10.3389/fnhum.2014.00696
- [OPEN ACCESS] http://aura.abdn.ac.uk/bitstream/2164/3785/1/fnhum_08_00696.pdf
Evidence for categorical crowding
The Scottish Vision Group (SVG) Meeting 2014Contributions to Conferences: AbstractsConscious updating is a rhythmic process
PNAS, vol. 109, no. 26, pp. 10599-10604Contributions to Journals: Articles- [ONLINE] DOI: https://doi.org/10.1073/pnas.1121622109
Substitution and pooling in crowding
Attention, Perception & Psychophysics, vol. 74, no. 2, pp. 379-396Contributions to Journals: Articles- [ONLINE] DOI: https://doi.org/10.3758/s13414-011-0229-0
Bullet trains and steam engines: exogenous attention zips but endogenous attention chugs along
Journal of Vision, vol. 11, no. 4, pp. 1-12Contributions to Journals: Articles- [ONLINE] DOI: https://doi.org/10.1167/11.4.12
The same binding in contour integration and crowding
Journal of Vision, vol. 11, no. 8, 10Contributions to Journals: Articles- [ONLINE] DOI: https://doi.org/10.1167/11.8.10
- [ONLINE] View publication in Scopus
Recovery of a crowded object by masking the flankers: determining the locus of feature integration
Journal of Vision, vol. 9, no. 10, 4Contributions to Journals: Articles- [ONLINE] http://ww.w.journalofvision.org/content/9/10/4.full
- [ONLINE] DOI: https://doi.org/10.1167/9.10.4
Bilateral field advantage in visual crowding
Vision Research, vol. 49, no. 13, pp. 1638-1646Contributions to Journals: Articles- [ONLINE] DOI: https://doi.org/10.1016/j.visres.2009.03.026
Supercrowding: weakly masking a target expands the range of crowding
Journal of Vision, vol. 9, no. 2, pp. 1-15Contributions to Journals: Articles- [ONLINE] http://w.journalofvision.org/content/9/2/12.full
- [ONLINE] DOI: https://doi.org/10.1167/9.2.12
Temporal properties of the polarity advantage effect in crowding
Journal of Vision, vol. 7, no. 2, 11Contributions to Journals: Articles- [ONLINE] http://ww.journalofvision.org/content/7/2/11.full
- [ONLINE] DOI: https://doi.org/10.1167/7.2.11
Real latencies and facilitation
Consciousness and Cognition, vol. 11, no. 2, pp. 300-303Contributions to Journals: Articles- [ONLINE] DOI: https://doi.org/10.1006/ccog.2002.0572
