15 papers · ranked by Valyu relevance
Rong Ma, Eric D. Sun, James Zou
Dimension reduction and data visualization aim to project a high-dimensional dataset to a low-dimensional space while capturing the intrinsic structures in the data. It is an indispensable part of modern data science, and many dimensional reduction and visualization algorithms have been developed. However, different…
Ye Tao, Anand D. Sarwate, Sandeep Panta, Jessica Turner + 2 more
Data visualizations are an integral part of neuroimging research, supporting activities ranging from exploratory data analysis to the interpretation and communication of findings. While essential, visualizations can also reveal private information about individual participants. In this paper, we discuss how…
D. Samuel Schwarzkopf, Xinran A. Yu, Ecem Altan, Loren N. Bouyer + 3 more
Research on mental visual imagery typically relies on vividness ratings. However, vividness is ill-defined as it lacks an objective reference. Here, we present survey results that suggest vividness is nevertheless a robust measure. It explains individual differences of a broad range of subjective experiences, from the…
D. Samuel Schwarzkopf, Xinran A. Yu, Ecem Altan, Loren N. Bouyer + 3 more
Research on mental visual imagery typically relies on vividness ratings. However, vividness is ill-defined as it lacks an objective reference. Here, we present survey results that suggest vividness is nevertheless a robust trait. It explains individual differences of a broad range of subjective experiences, from the…
Aarit Ahuja, Nadira Yusif Rodriguez, Alekh Karkada Ashok, Thomas Serre + 2 more
Visual simulation — i.e., using internal reconstructions of the world to experience potential future versions of events that are not currently happening — is among the most sophisticated capacities of the human mind. But is this ability in fact uniquely human? To answer this question, we tested monkeys on a series of…
Tiasha Saha Roy, Jesse Breedlove, Ghislain St-Yves, Kendrick Kay + 1 more
Extensive work has shown that the visual cortex is reactivated during mental imagery, and that models trained on visual data can predict imagery activity and decode imagined stimuli. These findings may explain why imagery can feel and function like vision, but give little insight into how the brain activity patterns…
Simon Weber, Thomas Christophel, Kai Görgen, Joram Soch + 1 more
It has been suggested that visual images are memorized across brief periods of time by vividly imagining them as if they still were there. Such visual imagery has been proposed as a key mechanism underlying working memory. However, the ability to evoke visual imagery varies substantially across individuals, raising the…
Nadine Dijkstra, Pim Mostert, Floris P. de Lange, Sander Bosch + 1 more
Visual perception and imagery rely on similar representations in the visual cortex. During perception, visual activity is characterized by distinct processing stages, but the temporal dynamics underlying imagery remain unclear. Here, we investigated the dynamics of visual imagery in human participants using…
Loren N. Bouyer, Dietrich S. Schwarzkopf, Blake W. Saurels, Derek H. Arnold
Most people can imagine images that they experience within their mind’s eye. However, there are marked individual differences, with some people reporting that they are unable to construct mental images at all (aphantasics), and others who report having imagined experiences that are as realistic as seeing…
Sophia M. Shatek, Tijl Grootswagers, Amanda K. Robinson, Thomas A. Carlson
Mental imagery is the ability to generate images in the mind in the absence of sensory input. Both perceptual visual processing and internally generated imagery engage large, overlapping networks of brain regions. However, it is unclear whether they are characterized by similar temporal dynamics. Recent…
Jussi Alho, Athanasios Gotsopoulos, Juha Silvanto
Conscious experiences normally result from the flow of external input into our sensory systems. However, we can also create conscious percepts independently of sensory stimulation. These internally generated percepts are referred to as mental images, and they have many similarities with real visual percepts.…
Alexander A Sulfaro, Amanda K Robinson, Thomas A Carlson
Although mental imagery is often studied as a visual phenomenon, it can occur in any sensory modality. Given that mental images may recruit similar modality-specific neural systems to those which support veridical perception, the properties of mental images may be constrained by the modality in which they are…
Claire Vanbuckhave, Giorgio Ganis
Previous studies suggest that visual mental imagery (VMI) acts as a weaker form of top-down visual perception (VP), with the two becoming more similar as VMI vividness increases. However, this relationship remains ill-defined, and it is unclear precisely how much weaker VMI is relative to VP. Here, we introduce an…
Alexander A Sulfaro, Amanda K Robinson, Thomas A Carlson
Mental imagery is a process by which thoughts become experienced with sensory characteristics. Yet, it is not clear why mental images appear diminished compared to veridical images, nor how mental images are phenomenologically distinct from hallucinations, another type of non-veridical sensory experience. Current…
Yiheng Hu, Qing Yu
Visual imagery, the ability to generate visual experience in the absence of direct external stimulation, allows for the construction of rich internal experience in our mental world. Most imagery studies to date have focused on cue-induced imagery, namely the to-be-imagined contents were triggered by external cues. It…