![Top 10 best human behavior research blog posts in 2019 top-10-human-behavior-2019](https://www.noldus.com/static/images/core-blog/top-10-human-behavior-2019.jpg)
Top 10 best human behavior research blog posts in 2019
As we are in the middle of the holiday season, it is time to look back on another year on the Behavioral Research Blog! What are the best reads on human behavior research?
![Cognitive neuroscience: Emotions cognitive-neuroscience-emotions](https://www.noldus.com/static/images/core-blog/cognitive-neuroscience-emotions-1586436926.jpg)
Cognitive neuroscience: Emotions
In my previous blog post, I shared some of the basics of cognitive neuroscience. In this blog post, we will zoom into a more specific part of cognitive neuroscience: emotions.
![Consumers' food choices and emotions consumers-food-choices-and-emotions](https://www.noldus.com/static/images/core-blog/consumers-food-choices-and-emotions-1573121459.jpg)
Consumers' food choices and emotions
Is there a relationship between food choice and a person’s mood? Bartkiene et al. examined the factors that influence our food choice, using facial expression analysis.
![SUKIPANI: The magic word for making a smile sukipani-magic-word-making-smile](https://www.noldus.com/static/images/core-blog/sukipani-magic-word-making-smile.jpg)
SUKIPANI: The magic word for making a smile
The SUKIPANI smile is an exercise to train the muscles you use while smiling. Dr. Sugahara explains the effect of the movements of the muscles and uses FaceReader to analyze the smiles.
![What is RPPG? what-is-rppg](https://www.noldus.com/static/images/core-blog/what-is-rppg.jpg)
What is RPPG?
Nowadays, measuring heart rate and heart rate variability can be done remotely, without all kinds of devices being attached to the test participant, using remote photoplethysmography (RPPG). What is RPPG and how does it work?
![Emotional responses to infant crying emotional-responses-infant-crying](https://www.noldus.com/static/images/core-blog/emotional-responses-infant-crying.jpg)
Emotional responses to infant crying
Hearing an infant cry can cause negative emotions, which can impact the way we respond. Researchers Riem and Karreman instructed parents to apply specific emotion regulation strategies in response to infant crying.
![The effects of negative campaigning on emotions effects-negative-campaigning-emotions](https://www.noldus.com/static/images/core-blog/effects-negative-campaigning-emotions-1572337555.jpg)
The effects of negative campaigning on emotions
Do people display different emotions when they watch a commercial with or without negative campaigns? Sabine Dennert shares her findings in this guest blog post.
![How botulinum toxin affects facial expression how-botulinum-toxin-affects-facial-expression](https://www.noldus.com/static/images/core-blog/how-botulinum-toxin-affects-facial-expression.jpg)
How botulinum toxin affects facial expression
For the past twenty years, the demand for cosmetic procedures to the face has increased drastically. New technologies have become available that make it possible to look ‘better and younger’.
![What is Biometric Research? what-biometric-research](https://www.noldus.com/static/images/core-blog/what-biometric-research.jpg)
What is Biometric Research?
Biometric research is the study of subconscious processes related to attention, cognition, emotion, and physiological arousal.
![How to build a usability lab? how-to-build-a-usability-lab](https://www.noldus.com/static/images/core-blog/how-to-build-a-usability-lab.jpg)
How to build a usability lab?
Usability testing is an essential part of user centered design processes. It is necessary to evaluate prototypes. So how do you build a usability lab? This how to will help you out!