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Naturalistic Observations

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If you want to understand how behavior occurs, one of the best ways to gain information is to simply observe the behavior in its natural context. However, people might change their behavior in unexpected ways if they know they are being observed. How do researchers obtain accurate information when people tend to hide their natural behavior? As an example, imagine that your professor asks everyone in your class to raise their hand if they always wash their hands after using the restroom. Chances...

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Ideally, the people who observe and record the children’s behavior are unaware of who was assigned to the experimental or control group, in order to control for experimenter bias. Experimenter bias refers to the possibility that a researcher’s expectations might skew the results of the study. Remember, conducting an experiment requires a lot of planning, and the people involved in the research project have a vested interest in supporting their hypotheses. If the observers knew which...

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Related Experiment Video

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Blue-hazard-free Candlelight OLED

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The most transparent research.

Nature Medicine

|October 9, 2009

Summary

This summary is machine-generated.

Scientists are developing methods to make biological tissues transparent, enabling real-time in vivo imaging. This breakthrough will revolutionize disease study and biological development observation.

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Area of Science:

Biomedical Engineering
Biophysics
Developmental Biology

Background:

Current limitations in biomedical research stem from the opacity of biological tissues, hindering in vivo imaging.
Light scattering due to varying refractive indices within tissues prevents clear visualization of internal structures.

Discussion:

Researchers are employing interdisciplinary approaches, integrating genetics, electrical engineering, chemistry, and physics to achieve tissue transparency.
The development of transparent organisms, like the "casper" zebrafish, has already enabled real-time studies of cancer pathology and development.

Key Insights:

Overcoming light scattering is crucial for rendering biological tissues transparent.
Transparent tissues would allow direct observation of biological processes, akin to observing jellyfish.

Outlook:

Advancements in tissue transparency promise to significantly enhance our understanding of biology and disease.
This technology holds potential for improved diagnostics and more effective disease treatment strategies.