Category Archives: Neurobiology

Nowadays we are more aware than ever about the relevance of eating a balanced and assorted diet. However, in the more industrialized countries obesity has become almost epidemic, and it is a condition that lies at the base of many […]

As the Hungarian mathematician Alfréd Rényi famously put it (although usually misattributed to Paul Erdös), mathematicians are devices for turning coffee into theorems. Other people drink coffee for a variety of reasons, and considering that coffee is very far […]

For any animal, the real world is an ever-changing environment. Continuously, even then they are just remaining in a peaceful, awake state, animals receive multiple sensory signals encoding different features of their surroundings, or even carrying information about their own […]

The functioning of the human brain goes far beyond a bunch of cells packed together; each of them is able to produce, receive, and transform electrical signals into a concrete response that affects the neighboring cells, counted by hundreds. This […]

If you were told something like “there is chemistry between us”, you certainly would not think that the speaker is referring to actual molecules flying across the space but, more appropriately, you would take it as a figurative way of […]

Cajal famously described the fly visual system as “stupendous, indeed disconcerting, and with no precedent in other animals”. By comparison, the vertebrate retina seemed “gross and deplorably simple”. Now we know that this simplicity is only apparent, but we can […]

It was commonly assumed that no new neurons are formed in the adult mammalian brain, even after the first results showing neurogenesis in rodents were published in the 1960s. Further work in mammals and birds during the 80s contributed […]

Our brain constitutes one of the finest pieces of natural machinery known, and it allows us to efficiently interact with our environment: searching for food, avoiding predators, communicating with other individuals, and even some more sophisticated stuff — like enjoying […]

Human brain has about 85 billion neurons. Each neuron forms thousands of chemical and electrical synapses with other neurons. To record the synaptic activity of each neuron in the brain an intracellular probe with a millivolt scale is required. Glass […]

In our eyes, the cornea and crystalline lens project an image of the world onto the retina. There, this image is sampled by the rods and the cones —the light-sensitive cells of the vertebrate eye—, coded as a sequence […]