Visual working memory performance in aphantasia

@article{Jacobs2018VisualWM,
  title={Visual working memory performance in aphantasia},
  author={C. Jacobs and D. Schwarzkopf and J. Silvanto},
  journal={Cortex},
  year={2018},
  volume={105},
  pages={61-73}
}
Aphantasia, i.e., the congenital inability to experience voluntary mental imagery, offers a new model for studying the functional role of mental imagery in (visual) cognition. However, until now, there have been no studies investigating whether aphantasia can be linked to specific impairments in cognitive functioning. Here, we assess visual working memory performance in an aphantasic individual. We find that she performs significantly worse than controls on the most difficult (i.e., requiring… Expand
Quantifying Aphantasia through drawing: Those without visual imagery show deficits in object but not spatial memory
TLDR
This large-scale online study of aphantasics revealed a dissociation in object and spatial content in their memory representations and provides evidence for separate systems in memory that support object versus spatial information. Expand
The human imagination: the cognitive neuroscience of visual mental imagery
  • J. Pearson
  • Psychology, Medicine
  • Nature Reviews Neuroscience
  • 2019
TLDR
Recent insights into the neural mechanisms that underlie visual imagery are discussed, how imagery can be objectively and reliably measured, and how it affects general cognition are discussed. Expand
Quantifying aphantasia through drawing: Those without visual imagery show deficits in object but not spatial memory
TLDR
A object-specific memory impairment in individuals with aphantasia provides evidence for separate systems in memory that support object versus spatial information and provides an important experimental validation for the existence of a elephantasia as a variation in human imagery experience. Expand
Aphantasia: The science of visual imagery extremes.
TLDR
Preliminary evidence suggests that lifelong aphantasia is associated with prosopagnosia and reduction in autobiographical memory; hyperphantasia are associated with synesthesia; and aphantasic individuals can be highly imaginative and complete many tasks that were previously thought to rely on visual imagery, demonstrating that visualization is only one of many ways of representing things in their absence. Expand
Redefining Visual Working Memory: A Cognitive-Strategy, Brain-Region Approach
The ability to remember and manipulate visual information is pervasive and is associated with many cognitive abilities. Yet despite the importance of visual working memory (VWM), there is littleExpand
Imagine, and you will find – Lack of attentional guidance through visual imagery in aphantasics
TLDR
A lack of attentional guidance through visual imagery in aphantasics can be assumed and interpreted as new evidence in the imagery debate, showing that mental images actually influence information processing and are not merely epiphenomena of propositional processing. Expand
Visual mental imagery engages the left fusiform gyrus, but not the early visual cortex: a meta-analysis of neuroimaging evidence
TLDR
A revised neural model of VMI is proposed that draws inspiration from recent cytoarchitectonic and lesion studies, whereby fronto-parietal networks initiate, modulate, and maintain activity in a core temporal network centered on the fusiform imagery node, a high-level visual region in the left fusodus gyrus. Expand
Visual mental imagery engages the left fusiform gyrus, but not the early visual cortex: A meta-analysis of neuroimaging evidence
TLDR
A revised neural model of VMI is proposed that draws inspiration from recent cytoarchitectonic and lesion studies, whereby fronto-parietal networks initiate, modulate, and maintain activity in a core temporal network centered on the fusiform imagery node, a high-level visual region in the left fusodus gyrus. Expand
Behavioral and Neural Signatures of Visual Imagery Vividness Extremes: Aphantasia versus Hyperphantasia
TLDR
The first systematic, wide-ranging neuropsychological and brain imaging study of people with aphantasia, hyperphantasia and midrange imagery vividness is reported, validating and illuminating this significant but neglected dimension of individual difference. Expand
Phantasia–The psychological significance of lifelong visual imagery vividness extremes
TLDR
Aphantasia and hyperphantasia appear to be widespread but neglected features of human experience with informative psychological associations that are associated with scientific and mathematical occupations and 'creative' professions. Expand
...
1
2
3
...

References

SHOWING 1-10 OF 31 REFERENCES
Loss of imagery phenomenology with intact visuo-spatial task performance: A case of ‘blind imagination’
TLDR
The case of a patient, MX, who abruptly lost the ability to generate visual images is described, indicating that successful performance in visual imagery and visual memory tasks can be dissociated from the phenomenal experience of visual imagery. Expand
Visuospatial imagery and working memory in schizophrenia
TLDR
Evidence is found for enhanced imagery manipulation in SZ despite their WM maintenance deficit, however, this imagery enhancement was abolished when WM maintenance demands were increased. Expand
Mental Imagery and Visual Working Memory
TLDR
It is shown that performance in visual working memory - but not iconic visual memory - can be predicted by the strength of mental imagery as assessed with binocular rivalry in a given individual, suggesting a dichotomy in strategies for visualWorking memory. Expand
Spatial and Visual Working Memory: A Mental Workspace
Publisher Summary This chapter provides a broad overview of some current theoretical arguments regarding working memory, focusing particularly on visuospatial cognition. It also illustrates how aExpand
Representations in mental imagery and working memory: Evidence from different types of visual masks
TLDR
Findings not only constrain theories of visual mental imagery and visual working memory, but also have direct implications for why some studies have failed to find that dynamic visual noise interferes with visualWorking memory. Expand
Neural Anatomy of Primary Visual Cortex Limits Visual Working Memory.
TLDR
It is shown that the stable storage limits of visual working memory for over 9 s are bound by the precise gray matter volume of primary visual cortex (V1), defined by fMRI retinotopic mapping. Expand
The sensory strength of voluntary visual imagery predicts visual working memory capacity.
TLDR
The results suggest that luminance was disrupting sensory mechanisms common to both visual working memory and imagery, and not a general working memory system, and the disruptive selectivity of background luminance suggests that good imagers, unlike moderate or poor imager, may use imagery as a mnemonic strategy to perform the visual workingMemory task. Expand
Visual mental image generation does not overlap with visual short-term memory: A dual-task interference study
TLDR
Results suggest that the temporary retention of visual mental images and of visual information may be supported by the same visual short-term memory store but that this store is not involved in image generation. Expand
Shared Representations for Working Memory and Mental Imagery in Early Visual Cortex
TLDR
The findings suggest that the visual cortex serves as a dynamic "blackboard" that is used during both bottom-up stimulus processing and top-down internal generation of mental content. Expand
Working memory and the vividness of imagery.
TLDR
The working memory framework was used to investigate the factors determining the phenomenological vividness of images and showed an image modality by task interaction, implicating both working memory and LTM in the experience of vividness. Expand
...
1
2
3
4
...