Can we decode the language of our primate cousins?

A UNIGE team shows that the human brain is capable of identifying the vocalizations of certain primate species, if they are close to us and if the frequencies used are also close to our own.

The shape of dogs' heads affects their sleep, according to study

Flat-faced dog breeds are popular all over the world. In the U.S. and in Hungary, the French bulldog is currently the most common breed. However, their popularity comes at a high cost in terms of health: Shortened skulls ...

Diamond quantum sensors measure neuron activity

A recent study by European scientists shows that highly sensitive sensors based on color centers in a diamond can be used to record electrical activity from neurons in living brain tissue. The work is published in the journal ...

Pickier dogs found to have pickier brains

Dogs' food preferences are mirrored in their brain activity, particularly within their caudate nuclei -a brain region associated with reward processing, a new study combining behavioral and neuroimaging data by researchers ...

Rats have an imagination, new research finds

As humans, we live in our thoughts: from pondering what to make for dinner to daydreaming about our last beach vacation. Now, researchers at HHMI's Janelia Research Campus have found that animals also possess an imagination.

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Electroencephalography

Electroencephalography (EEG) is the recording of electrical activity along the scalp produced by the firing of neurons within the brain. In clinical contexts, EEG refers to the recording of the brain's spontaneous electrical activity over a short period of time, usually 20–40 minutes, as recorded from multiple electrodes placed on the scalp. In neurology, the main diagnostic application of EEG is in the case of epilepsy, as epileptic activity can create clear abnormalities on a standard EEG study. A secondary clinical use of EEG is in the diagnosis of coma and encephalopathies. EEG used to be a first-line method for the diagnosis of tumors, stroke and other focal brain disorders, but this use has decreased with the advent of anatomical imaging techniques such as MRI and CT.

Derivatives of the EEG technique include evoked potentials (EP), which involves averaging the EEG activity time-locked to the presentation of a stimulus of some sort (visual, somatosensory, or auditory). Event-related potentials refer to averaged EEG responses that are time-locked to more complex processing of stimuli; this technique is used in cognitive science, cognitive psychology, and psychophysiological research.

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