Author archives: Jorge Mejías

Image of Jorge Mejías

Jorge Mejías received his MSc in Physics and PhD in Computational neuroscience from the University of Granada. After working as a postdoc at the Centre for Neural Dynamics of the University of Ottawa (Canada) he is currently at the Center for Neural Science of New York University.

A new type of spontaneous activity in the brain identified

A new type of spontaneous activity in the brain identified

NeurobiologyNeuroscience

By Jorge Mejías

The study of the spontaneous activity in the brain –and its origin– is one of the major puzzles in modern neural science. In many situations, the same neurons which behave smoothly and in an easily predictable way in in vitro experimental conditions, turn into unpredictable units, firing spikes irregularly and even chaotically, when they are […]

Sensory competition (1): A clash of odors

Sensory competition (1): A clash of odors

Neurobiology

By Jorge Mejías

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 internal state (orientation, body movement, or internal temperature, for example). Some of these signals might […]

Research funding: big vs. little science

Research funding: big vs. little science

EconomicsSociology

By Jorge Mejías

With the delicate economical situation that many developed countries are experiencing in the last years, a significant number of questions and concerns have been risen about how to properly assign and distribute funding to scientific institutions and research group leaders. In particular, a relevant question for science funding could be how to optimize the scientific […]

The (energetical) cost of having a brain

The (energetical) cost of having a brain

Neurobiology

By Jorge Mejías

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 a well composed piece of classical (or rock) music. However, all this comes at a […]

How good are neuron models?

How good are neuron models?

Neuroscience

By Jorge Mejías

For several decades now, physicists, mathematicians, neurobiologists and other specialists have been joining efforts to build realistic mathematical models of neurons. A typical model consists on one or several differential equations that are able to predict the evolution of the membrane potential of a neuron for a given input. When introduced in a computer, these […]