Publication

Intrinsically photosensitive retinal ganglion cells: classification, function and clinical implications

Related publications (32)

Combining wearable eye-tracking with 4π light-field measurements: towards controlling all bottom-up and top-down factors driving overt attention during real-world tasks

For improvement of office space design, we intend to capture the full (4π) light-field of an office space, while measuring gaze, head direction, body position, blink rate, and pupil size along with task performance and subjective well-being during a variet ...

2013

Simulation-based evaluation of non-visual responses to daylight: proof-of-concept study of healthcare re-design

Marilyne Andersen, María Lovísa Ámundadóttir, Steven W. Lockley

The discovery of a novel non-rod, non-cone photoreceptor in the human eye that mediates a number of effects on the brain has sparked a growing interest in incorporating these non-visual effects of light into the design process of buildings. Appropriately–t ...

2013

Modeling non-visual responses to light: unifying spectral sensitivity and temporal characteristics in a single model structure

Marilyne Andersen, María Lovísa Ámundadóttir, Steven W. Lockley

The discovery of a novel type of photoreceptor that mediates non-visual light responses in humans has sparked a growing interest in the role of lighting design on human health and wellbeing. Researchers have identified intensity, spectrum, duration/pattern ...

2013

Modeling dynamic aspects of human nonvisual responses to light

Marilyne Andersen, María Lovísa Ámundadóttir, Steven W. Lockley

Since 2002, when the first reports on the discovery of a novel type of mammalian ocular photoreceptor were published, a new field of study at the intersection of photobiology and architecture started to emerge. These novel non-rod, non-cone photoreceptors ...

2013

Assessment of Circadian Weighted Radiance Distribution Using a Camera-Like Light Sensor

Jean-Louis Scartezzini, Jérôme Henri Kämpf, Laurent Deschamps, Mirjam Münch, Apiparn Borisuit

Suboptimal light distribution in a room can cause visual discomfort and glare. Next to rods and cones, perception of light is also governed by a third class of photoreceptors, important for circadian rhythm regulation and non-visual functions such as alert ...

EPFL Solar Energy and Building Physics Laboratory (LESO-PB)2013

Circadian and Wake-Dependent Effects on the Pupil Light Reflex in Response to Narrow-Bandwidth Light Pulses

Lorette Leon

PURPOSE. Nonvisual light-dependent functions in humans are conveyed mainly by intrinsically photosensitive retinal ganglion cells, which express melanopsin as photopigment. We aimed to identify the effects of circadian phase and sleepiness across 24 hours ...

Association for Research in Vision and Ophthalmology2012

Nonvisual light-response model: a preliminary approach to integrating recent findings in biology into a lighting simulation process

Marilyne Andersen, María Lovísa Ámundadóttir, Steven W. Lockley

In addition to stimulating visual responses, light induces a range of circadian, neuroendocrine and neurobehavioral non-visual responses in humans. These effects are mediated primarily via a novel non-rod, non-cone photoreceptor, which is most sensitive to ...

2012

A Model of Retinal Local Adaptation for the Tone Mapping of Color Filter Array Images

Sabine Süsstrunk, Laurence Meylan

We present a tone mapping algorithm that is derived from a model of retinal processing. Our approach has two major improvements over existing methods. First, tone mapping is applied directly on the mosaic image captured by the sensor, analogue to the human ...

2007

Spatio-chromatic ICA of a Mosaiced Color Image

Sabine Süsstrunk

We analyze whether Independant Component Analysis (ICA) is an appropriate tool for estimating spatial information in spatiochromatic mosaiced color images. In previous studies, ICA analysis of natural color scenes (Hoyer et al. 2000; Tailor et al., 2000; W ...

2004

Spatio-chromatic PCA of a mosaiced color image

Sabine Süsstrunk

In this paper, we analyze whether Principal Component Analysis (PCA) is an appropriate tool for estimating spatial information in spatio- chromatic mosaiced images. Ruderman et al. 1 have shown that the spatio- chromatic principal components of cone images ...

2004

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