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Pupil-based arousal self-regulation: impact on physiological and affective responses to emotional stimuli [PDF]
Translational PsychiatryPupil-based biofeedback has been shown to enable healthy participants to volitionally control locus coeruleus-mediated arousal. The locus coeruleus is considered a critical player in the central stress circuitry and dysfunctions in the system, causing ...
Jenny Imhof +3 more
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Pupil size is linked to opposite signal fluctuations between cortical BOLD and ventricular CSF [PDF]
NeuroImagePupillometry has been used as a biomarker of activity in the Locus Coeruleus (LC), a noradrenergic nucleus crucial for arousal. As the LC has been implicated in modulating cerebrospinal fluid (CSF) flow, here we investigated the associations of pupil ...
Sukru Baris Demiral +2 more
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Pupil assessment in optic nerve disorders [PDF]
Eye, 2004 The normal pupillary constriction to light is an involuntary reflex that can be easily elicited and observed without specialized equipment or discomfort to the patient. Attenuation of this reflex in optic nerve disorders was first described 120 years ago.
F D Bremner
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Contribution of pupillary light reflex assessment to Glasgow Coma Scale for prognostication in patients with traumatic brain injury [PDF]
Journal of Neurocritical Care, 2021 Background Glasgow Coma Scale (GCS) and the pupillary light reflex (PLR) are important prognostic tools for traumatic brain injury (TBI). This study compared the predictability of GCS, GCS plus manual PLR (GCS-P), GCS plus Neurological Pupil index (GCS ...
Amna A. Butt +6 more
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Pupil responses to colorfulness are selectively reduced in healthy older adults
Scientific Reports, 2023 The alignment between visual pathway signaling and pupil dynamics offers a promising non-invasive method to further illuminate the mechanisms of human color perception.
Janneke E. P. van Leeuwen +5 more
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Journal of Ophthalmology, 2020 Background: As there is close association between pupil response and accommodation during gaze fixation on an object at any distance, it is important to assess accommodative pupil response both in healthy children and in those with accommodative ...
Shakir Dukhayer +2 more
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Increased Pupil Size during Future Thinking in a Subject with Retrograde Amnesia
Brain Sciences, 2022 Recent research has assessed pupil size during past thinking in patients with retrograde amnesia. Building on this research, we assessed pupil size during future thinking in a retrograde amnesia patient.
Claire Boutoleau-Bretonnière +2 more
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Intervention in the Cohesion of Narrative Discourse in Pupils with Developmental Language Disorder [PDF]
Psicología Educativa, 2022 The main objective of this study was to verify the effectiveness of an intervention program on cohesion in pupils with typical development and with developmental language disorder. A total of 99 5-year-old pupils from schools in the island of Tenerife (Canary Islands, Spain) participated.
Ramírez Santana, Gustavo Mario +2 more
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Journal of Ophthalmology, 2020 Background: As there is close association between pupil response and accommodation during gaze fixation on an object at any distance, it seems interesting to study pupil response to accommodation in patients with accommodative disorders.
Shakir Dukhayer +2 more
doaj +1 more source
From pupil to the brain: New insights for studying cortical plasticity through pupillometry
Frontiers in Neural Circuits, 2023 Pupil size variations have been associated with changes in brain activity patterns related with specific cognitive factors, such as arousal, attention, and mental effort.
Aurelia Viglione +3 more
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