Behavioral Research Blog

G. Smit

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Isolated and stressed zebrafish as a model for major depression

Posted by G. Smit on Mar 9, 2017

Depression: a fifth (!) of us cope with it, making it the most prevalent psychiatric disorder. It comes as no surprise that researchers try to wrap their minds around it, not to mention the interest gained from the pharmaceutical industry.

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Topics: EthoVision XT, Video tracking, zebrafish, depression

Mice with spatial and odor memory impairment – new model for sporadic Alzheimer’s

Posted by G. Smit on Feb 27, 2017

Plaques and tangles… those of you even remotely familiar with Alzheimer’s disease (AD) will immediately recognize these hallmarks. Many rodent models, focusing on plaques and tangles, have been developed to explore the cause and possible treatments of AD, and much progress has been made.

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Topics: EthoVision XT, mice, Video tracking, learning and memory, olfactory memory

How obese mice get moving

Posted by G. Smit on Jan 26, 2017

By a showing of hands:  how many of you started this New Year with the resolution to get moving? Burn off those extra holiday calories, or finally really get in shape? Because, let’s be honest, it’s all about willpower right? “Just do it!”

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Topics: EthoVision XT, mice, obesitas, behavior recognition

How optogenetics is used to study the stress response in zebrafish larvae

Posted by G. Smit on Jan 23, 2017

Optogenetics - making neurons sensitive to activation by light - is a great tool in the unraveling of the function of the brain in biological processes and behavior. In a recent study by Rodrigo J. De Marco and his colleagues used optogenetic techniques to uncover the role of the pituitary in zebrafish larvae behavior after the onset of stress.

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Topics: EthoVision XT, zebrafish, optogenetics, stress research

Autistic mice have motor learning difficulties specific to the cerebellum

Posted by G. Smit on Jan 13, 2017

Most of us are familiar with the typical behavioral characteristics associated with autism: social behavior deficits and repetitive behaviors. However, motor abnormalities are also a part of the autism behavioral spectrum. These have generally been linked to malfunction of the cerebral cortex, but recent studies have also implicated the cerebellum.

Autistic phenotype in mice

Shank2 is a gene that encodes a postsynaptic protein and has been linked to autism spectrum disorders (ASD). In short, inactivation of this gene in mice creates “autistic mice” (Won et al. Nature 2012).

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Topics: mice, autism research, ErasmusLadder, cerebellum, autism

Discrimination learning without human intervention or food restriction

Posted by G. Smit on Dec 15, 2016

 

Learning paradigms have long been the hallmark in studies on neurological and psychiatric disorders, but they often present challenges and come with limitations. For example, many of these tasks require some combination of food restrictions, handling of the animals, and/or are quite labor-intensive. Sylics recently introduced a new paradigm, called CognitionWall, that you might have already seen on our website, and aims to get around some of these limitations.

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Topics: EthoVision XT, mice, Video tracking, learning and memory, PhenoTyper, cognition, cognitionwall, sylics

Live from the Neuroscience 2016 exhibit hall: DIY research tools

Posted by G. Smit on Nov 15, 2016

As a research tool manufacturer, we try to listen carefully to the scientific community when we create and refine our software and instruments.

Of course we want to make the best products, and we also want you to actually buy and use them. However, I am not in the research and development department, nor am I a sales person. I just like finding out and writing about research.

So for me this Neuroscience meeting is, like last year, a great way to discover what the neuroscience community is up to.

One of the things I admire about many labs is the desire to want to investigate something, and then the creativity to collect and even create what they need for their study.

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Topics: PhenoTyper, neuroscience, conferences, SfN

The use of video tracking in a HaXha test

Posted by G. Smit on Aug 25, 2016

When you get used to something, after a while you might not notice it anymore. It’s called habituation. When you are repeatedly presented with the same stimulus you might cease to respond to it altogether.

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Topics: Video tracking

How sleep heals the brain

Posted by G. Smit on May 10, 2016


rearing-brow-rat-500.jpgWe sleep a large portion of our lives. We need to, we know this, and science proves it. Sleep helps us to process what we have learned, to let our nervous system function properly, and to concentrate during the day. We have all been there: a bit of stress or anxiety for a big day coming up leads to not sleeping well, and we suffer the consequences. Loss of concentration, maybe a bit cranky… my mother always told me sleep makes everything better. And now researchers have proven that it can heal the brain. The question is, how?

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Topics: EthoVision XT, learning and memory, rats, novel object test, traumatic brain injury, sleep research

No science fiction: Magnetogenetics and how to induce animal behavior

Posted by G. Smit on Apr 7, 2016

For a few years now, optogenetics has been the answer to shortcomings of using pharmaceuticals or electrodes in brain research. The temporal and spatial precision of optogenetic methods rapidly produced many new insights into neural networks in the normal and diseased brain. But like any other methodology, optogenetics also has limitations. Although wireless options have been developed, optogenetics means neuronal control by light, and delivering this light to the selected brain cells is still an invasive method (unless you are using larval zebrafish). Additionally, the method can be difficult to scale up, including to more neurons, deeper brain tissues, or larger brains.

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Topics: EthoVision XT, mice, zebrafish, optogenetics, chemogenetics, magnetogenetics

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