Medical research

Pupils reveal 'aphantasia'—the absence of visual imagination

The study, led by researchers from UNSW Sydney and published in eLife, found that the pupils of people with aphantasia did not respond when asked to imagine dark and light objects, while those without aphantasia did.

Psychology & Psychiatry

How the brain helps us focus our attention

How can we shift from a state of inattentiveness to one of highest attention? The locus coeruleus, literally the "blue spot," is a tiny cluster of cells at the base of the brain. As the main source of the neurotransmitter ...

Neuroscience

More than light detectors: The magic of your eyes' pupils

The mechanisms we use to sense quantity are located in our pupils. This is the result of a study conducted by the School of Psychology of the University of Sydney, in collaboration with the Universities of Pisa and Florence ...

Neuroscience

Pupillary light reflex can be inhibited by multisensory signals

Multisensory integration has been recently shown to produce a larger pupil size than unisensory constituents. Superior colliculus (SC), an important laminar nucleus in the midbrain, not only engages in spatial attention and ...

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