Publications de María Lovísa Ámundadóttir

The spectral sensitivity of human circadian phase resetting and melatonin suppression to light changes dynamically with light duration

Marilyne Andersen, María Lovísa Ámundadóttir

Human circadian, neuroendocrine, and neurobehavioral responses to light are mediated primarily by melanopsin-containing intrinsically-photosensitive retinal ganglion cells (ipRGCs) but they also receive input from visual photoreceptors. Relative photorecep ...

National Academy of Sciences2022

The spectral sensitivity of human circadian phase resetting and melatonin suppression to light changes dynamically with light duration

Marilyne Andersen, María Lovísa Ámundadóttir, Steven W. Lockley

2022

The Case for Occupant-Centric Daylight Analytics: a Comparison of Horizontal Illumination and Immersive View

Marilyne Andersen, Siobhan Francois Rockcastle, María Lovísa Ámundadóttir

Daylight is valued as an energy efficient alternative to electric light and over the past few decades, climate-based horizontal illuminance metrics have demonstrated the importance of variable sky conditions on annual predictions. These metrics allow us to ...

INT BUILDING PERFORMANCE SIMULATION ASSOC-IBPSA2019

OCUVIS: A Web-Based Visualizer for Simulated Daylight Performance

Marilyne Andersen, Siobhan Francois Rockcastle, María Lovísa Ámundadóttir

This paper introduces an interactive web-based visualizer for multi-metric daylight simulation results, named OCUVIS. It is able to display simulation-based results for a diverse range of ocular human-centric metrics such as non-visual health potential (nv ...

2018

Unified framework to evaluate non-visual spectral effectiveness of light for human health

Marilyne Andersen, María Lovísa Ámundadóttir, Steven W. Lockley

The discovery of a novel non-rod, non-cone photoreceptor in the mammalian eye that mediates a range of ‘non-visual’ responses to light has required reexamination of how lighting needs for human health are characterized and evaluated. Existing literature pr ...

SAGE Publications2017

A Simulation-Based Workflow to Assess Human-Centric Daylight Performance

Marilyne Andersen, Siobhan Francois Rockcastle, María Lovísa Ámundadóttir

This paper will present an annual simulation-based workflow for assessing human perceptual and non-visual responses to daylight across a series of view positions in an architectural case study. Through the integration of mathematical models used to predict ...

2017

Contrast measures for predicting perceptual effects of daylight in architectural renderings

Marilyne Andersen, Siobhan Francois Rockcastle, María Lovísa Ámundadóttir

Daylit architecture is perceived as a dynamic luminous composition, yet most existing performance metrics were designed to evaluate natural illumination for its ability to adequately illuminate a two-dimensional task surface and avoid glare-based discomfor ...

SAGE Publications2017

A human-centric approach to assess daylight in buildings for non-visual health potential, visual interest and gaze behavior

Marilyne Andersen, Mandana Sarey Khanie, Siobhan Francois Rockcastle, María Lovísa Ámundadóttir

This paper introduces a novel approach for the assessment of daylight performance in buildings, venturing beyond existing methods that evaluate 2-dimensional illumination and comfort within a fixed field-of-view in order to predict human responses to light ...

Elsevier2017

Light-driven model for identifying indicators of non-visual health potential in the built environment

María Lovísa Ámundadóttir

This thesis introduces a new approach to characterize and evaluate ocular light exposure based on the discovery of novel blue light-sensitive photoreceptors in the human eye. These photoreceptors are the primary mediators of 'non-visual' responses impactin ...

EPFL2016

Towards a novel prediction model for visual interest in daylit renderings

Marilyne Andersen, Siobhan Francois Rockcastle, María Lovísa Ámundadóttir

In spaces where daylight is a primary source of illumination, our visual perception of architecture is largely influenced by the ephemeral composition of sunlight and shadow. To evaluate these perceptual effects, the authors will apply quantitative contras ...

ACM Digital Library2016

Beyond illumination: An interactive simulation framework for non-visual and perceptual aspects of daylighting performance

Antoine Guillemin, Marilyne Andersen, Siobhan Francois Rockcastle, María Lovísa Ámundadóttir

This paper presents a proof-of-concept for a goal-based simulation structure that could offer design support for daylighting performance aspects beyond conventional ones such as illumination, glare or solar gains. The framework uses a previously establishe ...

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