The focus on this week lecture was the neurotransmitter, the chapter 6 – Neurotransmitter systems – of the book “Neuroscience: Exploring the Brain (2015)”.
The first transmitter studied further was the glutamate. It is the most common excitatory neurotransmitter in the brain and if it doesn’t work properly, it may causes some serious damages that can push to the death of the neuron.
On the other hand, another important neurotransmitter is GABA which is known to be the most common inhibitory neurotransmitter in the brain. Therefore it is mainly found in inhibitory synapse that when activated and located between the excitatory synapse and the soma, will dissipate the current signal and then no change of potential will be recorded in the soma.
The G-proteins were also an important factor looked into in the lecture. It is essential to understand how they work since they are really common proteins, especially in the brain. The G-proteins induce a cascade of called second messenger. It is a significant process since it can influence the signal a lot. The main second messengers cascades advantage is the signal amplification. In consequence, more than one protein can be activated from a single G-protein activation.
I think this week lecture was really interesting as we learned more about the complexity of the neurotransmitters. In addition, I was glad the teacher showed us some little videos about the different mechanism. I personally like it because it gives me a visual approach that helps me a lot to understand and remember the different processes.
Exercises Class 02.10
This week exercise session was a bit different from the others. We were in the computer room and actually did a real experiment; we were measuring the aural and visual speed of reaction. Even though the conditions might not have been the optimal for an experiment related on quickness of mind, I still think if was interesting. It gave me an good idea of how some easy tests can already give some good information about how the brain works.