Lightcap 2: Basics of light and its effects on humans

Introduction to the course covering the mechanisms through which light impacts human psychophysiology and measurement methods. The module provides an overview of light as a physical phenomenon and its psychological and chronobiological effects.

This module explores how lighting environments modulate cognitive efficiency and task performance. Students learn various methods used in lighting research, from performance tasks to questionnaires, and their limitations.

Introduction to light as electromagnetic radiation and CIE standards for light sources. Covers light metrology terms, measurement techniques, and calculations for specific lighting purposes.

Detailed exploration of the human eye system and photoreceptor sensitivity. Covers cones, rods, and ipRGCs, along with new guidelines for light measurement including alpha-opic and melanopic measurements.

Investigation of psychophysiological responses to light, including hormonal changes, heart rate, pupil responses, and electrodermal activity. Covers measurement, processing, and interpretation of physiological signals.

Introduction to electroencephalography (EEG) for measuring brain activity. Covers brain oscillations, spectral power distributions, Evoked Response Potentials, and data interpretation.

Advanced analysis of electro-physiological data, including pre-processing of EEG signals, analysis pipelines, and applications in lighting research. Includes case studies and critical evaluation of results.

Exploration of light's role as a "Zeitgeber" for circadian rhythms. Covers sleep regulation basics, measurement techniques for sleep and circadian rhythmicity, and implications for sleep disorders.

In-depth examination of light's effects on sleep health, including artificial light impacts, individual variations in non-visual effects, and factors influencing light sensitivity. Addresses real-life applications.