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Outputs (21)

Retinotopic-like maps of spatial sound in primary 'visual' cortex of blind human echolocators (2019)
Journal Article
Norman, L., & Thaler, L. (2019). Retinotopic-like maps of spatial sound in primary 'visual' cortex of blind human echolocators. Proceedings of the Royal Society B: Biological Sciences, 286(1912), Article 20191910. https://doi.org/10.1098/rspb.2019.1910

The functional specializations of cortical sensory areas were traditionally viewed as being tied to specific modalities. A radically different emerging view is that the brain is organized by task rather than sensory modality, but it has not yet been... Read More about Retinotopic-like maps of spatial sound in primary 'visual' cortex of blind human echolocators.

Human echolocation for target detection is more accurate with emissions containing higher spectral frequencies, and this is explained by echo intensity (2018)
Journal Article
Norman, L., & Thaler, L. (2018). Human echolocation for target detection is more accurate with emissions containing higher spectral frequencies, and this is explained by echo intensity. i-Perception, 9(3), 1-18. https://doi.org/10.1177/2041669518776984

Humans can learn to use acoustic echoes to detect and classify objects. Echolocators typically use tongue clicks to induce these echoes, and there is some evidence that higher spectral frequency content of an echolocator’s tongue click is associated... Read More about Human echolocation for target detection is more accurate with emissions containing higher spectral frequencies, and this is explained by echo intensity.

Texture segmentation without human V4 (2017)
Journal Article
Norman, L., Heywood, C., & Kentridge, R. (2017). Texture segmentation without human V4. Visual Cognition, 25(1-3), 184-195. https://doi.org/10.1080/13506285.2017.1301612

Texture segmentation, or second-order segmentation, is a rapid perceptual process, allowing object and surface boundaries to be effortlessly detected. It is currently unclear whether this is achieved in early cortical areas or whether it necessitates... Read More about Texture segmentation without human V4.

Incidental context information increases recollection (2017)
Journal Article
Ameen-Ali, K., Norman, L., Eacott, M., & Easton, A. (2017). Incidental context information increases recollection. Learning & Memory, 24(3), 136-139. https://doi.org/10.1101/lm.042622.116

The current study describes a receiver-operating characteristic (ROC) task for human participants based on the spontaneous recognition memory paradigms typically used with rodents. Recollection was significantly higher when an object was in the same... Read More about Incidental context information increases recollection.

Direct encoding of orientation variance in the visual system (2015)
Journal Article
Norman, L., Heywood, C., & Kentridge, R. (2015). Direct encoding of orientation variance in the visual system. Journal of Vision, 15(4), 1-14. https://doi.org/10.1167/15.4.3

Our perception of regional irregularity, an example of which is orientation variance, seems effortless when we view two patches of texture that differ in this attribute. Little is understood, however, of how the visual system encodes a regional stati... Read More about Direct encoding of orientation variance in the visual system.

Exogenous attention to unseen objects? (2015)
Journal Article
Norman, L., Heywood, C., & Kentridge, R. (2015). Exogenous attention to unseen objects?. Consciousness and Cognition, 35, 319-329. https://doi.org/10.1016/j.concog.2015.02.015

Attention and awareness are closely related phenomena, but recent evidence has shown that not all attended stimuli give rise to awareness. Controversy still remains over whether, and the extent to which, a dissociation between attention and awareness... Read More about Exogenous attention to unseen objects?.

Colour constancy for an unseen surface (2014)
Journal Article
Norman, L., Akins, K., Heywood, C., & Kentridge, R. (2014). Colour constancy for an unseen surface. Current Biology, 24(23), 2822-2826. https://doi.org/10.1016/j.cub.2014.10.009

The illumination of a scene strongly affects our perception of objects in that scene, e.g., the pages of a book illuminated by candlelight will appear quite yellow relative to other types of artificial illuminants. Yet at the same time, the reader st... Read More about Colour constancy for an unseen surface.

Object-based attention without awareness (2013)
Journal Article
Norman, L. J., Heywood, C. A., & Kentridge, R. W. (2013). Object-based attention without awareness. Psychological Science, 24(6), 836-843. https://doi.org/10.1177/0956797612461449

Attention and awareness are often considered to be related. Some forms of attention can, however, facilitate the processing of stimuli that remain unseen. It is unclear whether this dissociation extends beyond selection on the basis of primitive prop... Read More about Object-based attention without awareness.

Gender-based navigation stereotype improves men’s search for a hidden goal (2012)
Journal Article
Rosenthal, H., Norman, L., Smith, S., & McGregor, A. (2012). Gender-based navigation stereotype improves men’s search for a hidden goal. Sex Roles, 67(11-12), 682-695. https://doi.org/10.1007/s11199-012-0205-8

While a general stereotype exists that men are better at navigating than women, experimental evidence indicates that men and women differ in their use of spatial strategies, and this preference determines gender-differences. When both environmental g... Read More about Gender-based navigation stereotype improves men’s search for a hidden goal.