Apr 18, 2013

Who Needs a Paintbrush When You Can Use a Dead Fish?

Not CEREBRART but interesting. James Prosek; "Why are we so eager to draw these disciplinary walls?" http://blogs.scientificamerican.com/symbiartic/2013/04/17/who-needs-a-paintbrush-when-you-can-use-a-dead-fish/

Apr 16, 2013

CEREBRART - Prosopagnosia

Prosopagnosia is a disorder of face perception where the ability to recognize familiar faces (such as their immediate family members) is impaired, although the ability to recognize other objects may be relatively intact. Further, some impairments in recognizing facial expressions have been reported in a variety of diseases like Huntington’s disease, Parkinson’s disease, Alzheimer’s disease and schizophrenia. I think that prosopagnosia and related disorders are caused by jumping between different chaotic attractors in the primate brain networks. The primate face is evolved evolutionary to be a beautiful attractor for the primate brain networks in a turbulent world of chaotic forest ecosystems representing important attributes such as attractiveness or social status. I think that a normal primate brain is able to represent the known faces as attractors of the neural network. Normally, the primate brains gather visual information through the eyes and the primary visual cortex and modify dynamically specific facial muscles to be interpreted properly by other primate brains through nonlinear feedback processes of iteration and mutual communication. Inability to stabilize such complex nonlinear feedback processes may suggest the emergence of chaotic attractors in the brain networks. This CEREBRART work illustrates these ideas artistically.
P.S. According to a recent comment I tried to generate a primary artistic design idea for an artefactual facial attractor to help people with Prosopagnosia ...

Apr 14, 2013

CEREBRART - Dorsal Anterior Cingulate Cortex

Many studies have provided evidence that social conflicts can generate activation in the Anterior Cingulate Cortex. The Anterior Cingulate Cortex is the frontal part of the Cingulate Cortex, that resembles a collar around the brain corpus callosum.

This CEREBRART work  illustrates the Dorsal Anterior Cingulate Cortex that is  involved in the distressing experience of social exclusion and might represent a circuit that underpins sadness.  So, this partially isolated brain illustrates not only an increased activity in the Dorsal Anterior Cingulate Cortex but also as an abstract idea of the experience of distress following social rejection/isolation associated with greater activity in the Dorsal Anterior Cingulate Cortex.

Apr 10, 2013

CEREBRART - Basket Cell

Despite more than 100 years of scientific research, the causes of schizophrenia are still unknown. Neural oscillations are a fundamental mechanism for enabling coordinated activity of brain cells.

Recent evidence from electrophysiological, physiological and anatomical studies suggests that abnormalities in the oscillatory activity of brain cells may have a central role in the pathophysiology of schizophrenia. There is evidence towards cortical hyperexcitability in schizophrenics - “Glutamate Chaos” because of a lack of inhibition. 

Dysfunctional oscillations may arise owing to anomalies in the brain’s rhythm-generating networks of GABA-interneurons.

Of the GABA-interneurons types, the cortical Basket Cells are very characteristic in that their axons, when viewed under the microscope, terminate on somata and proximal dendrites of Pyramidal Cells. Therefore, Basket Cells, whose axon terminals surround principal cell somata and proximal dendrites, have a privileged and influential position for regulating the firing of Pyramidal Cells.

The strategic location of Basket Cells axons has long suggested that they subserve inhibitory
mechanisms on the somata of Pyramidal Cells possibly preventing and limiting chaotic processes - “Glutamate Chaos” - in the network of Pyramidal Cells. Thus, altered perisomatic inhibition of Pyramidal Cells by Basket Cells could provide a plausible mechanistic basis for the gamma-oscillation impairments and cognitive deficits in schizophrenia. In the future, this hypothesis may provide a powerful research tool to gain new insights on ways to limit chaotic processes and restore gamma oscillations in schizophrenia.

This CEREBRART work illustrates these ideas artistically.