FDA - Variable Light Emitting Device

How the Brain Processes Light

Light entering the eye is detected by specialized cells in the retina. Photoreceptors convert light into electrical signals that are processed by retinal neural circuits and transmitted along the optic nerve to visual processing regions of the brain.

Scientists study how visual input influences neural activity. One area of interest is rhythmic visual stimulation, which uses patterns of light presented at particular frequencies in controlled research settings.

The responses observed depend on the characteristics of the stimulation, research conditions, and individual participants.

Research Topics in Neuroscience

Gamma-Frequency Brain Activity

Gamma oscillations describe patterns of neural activity often studied in the approximate 30–100 Hz range.

Researchers investigate their relationships with sensory processing, attention, memory, and communication among neural networks.

Some experiments examine whether rhythmic sensory stimulation influences measurable brain rhythms. The clinical significance of such responses remains under investigation.

Microglial Cells

Microglia are specialized immune cells in the brain and spinal cord. They help monitor the neural environment and respond to changes, including injury and the accumulation of cellular material.

Researchers are investigating relationships among neural activity, microglial function, and brain health.

These findings do not establish that VLED activates microglia or improves disease outcomes.

Amyloid-Beta and Alzheimer's Research

Amyloid-beta is a peptide produced in the body. Abnormal accumulation of amyloid-beta, together with changes involving tau and other processes, is associated with Alzheimer's disease.

Alzheimer's disease is complex. The presence or removal of amyloid-beta alone does not explain every aspect of the condition.

These studies should not be interpreted as evidence that VLED provides treatment benefits.

Understanding Research Limitations

Animal studies, laboratory experiments, and preliminary human research can generate important hypotheses.

Results from one technology or study population cannot automatically be transferred to a different device.

Whether a particular product provides clinical benefits requires evidence directly relevant to that product, its settings, and its intended use.

Exploring the Scientific Literature

Neuroscience researchers investigate how electrical activity, sensory input, and neural circuits relate to brain function.

The following study is presented for general education and does not constitute clinical validation of VLED.

Related Laboratory Research

Excitation and Inhibition in Animal Models

Yizhar and colleagues studied how manipulating neuronal activity affected information processing and social behavior in experimental mice.

The researchers used optogenetics, an experimental method involving light-sensitive proteins introduced into selected cells.

This differs substantially from externally delivered visual light stimulation.

Read the study: Yizhar O, et al. Nature (2011)

Learn About Related Neuroscience Research

Exploring Gamma-Frequency Brain Activity

Researchers at the Massachusetts Institute of Technology (MIT), including scientists at the Picower Institute for Learning and Memory, have investigated relationships between rhythmic sensory stimulation, gamma-frequency brain activity, and neurological function.

Their research explores how controlled visual and auditory stimulation may influence neural activity and related biological processes.

These findings contribute to an evolving field of neuroscience research.

Samuel Shepherd and VLED

Samuel Shepherd, associated with the development of VLED, has publicly discussed MIT's neuroscience research and his interest in the relationship between light stimulation and brain activity.

MIT Neuroscience Research Video

The following video is included as educational background information about neuroscience research involving brain activity and sensory stimulation.

Research video attributed to the Picower Institute for Learning and Memory at MIT. Presented for educational purposes.

* Important Research Clarification

The research presented in this video is independent scientific research.

Its inclusion does not establish that VLED produces the same effects observed in MIT experiments or that MIT endorses VLED.

Research involving rhythmic sensory stimulation is ongoing. This information does not establish that VLED prevents, diagnoses, treats, mitigates, or relieves symptoms of any disease or medical condition.

Introducing the Updated VLED Designs

The ValAsta® Variable Light Emitting Device (VLED) is now available in two refreshed designs. Both offer a clean, contemporary appearance, giving customers a choice of styles to complement their personal space.

VLED Globe

The VLED Globe features a smooth, spherical silhouette with a classic white finish and coordinating tabletop base.

Its simple, balanced appearance offers a modern alternative to the original VLED design. An integrated inline power switch provides convenient access to the device's power control.

VLED Egg

The VLED Egg features an elegant, elongated silhouette with a smooth white finish and coordinating tabletop base.

Its distinctive shape offers an alternative for those who prefer a more sculptural design. An integrated inline power switch provides convenient access to the device's power control.

About the New Designs

The Globe and Egg are exterior design options within the ValAsta VLED collection. Their appearance does not establish differences in medical or therapeutic effectiveness. Refer to the product-specific instructions for technical specifications and safe operation.