“Inside the Brain,” a NeuroMat-supported exhibition at the University of São Paulo Museum of Veterinary Anatomy

The University of São Paulo Museum of Veterinary Anatomy will launch in the short-run the exhibition “Inside the Brain,” curated by NeuroMat investigator André Frazão Helene. The goal of the exhibition, which will be held permanently in the museum, is to stress the role of the anatomy (form) and neural activity (function) in how the brain works. The exhibition is supported by FAPESP (via NeuroMat), the University of São Paulo “Pró- Reitoria de Cultura e Extensão Universitária,” the Laboratory of Cognitive Processes, and the User Group Wikimedia in Brazil.

Video: Inside the brain

Movie on the exhibition "Por dentro do cérebro", at the University of São Paulo.

Production: Giulia Ebohon.

Coupled variability in primary sensory areas and the hippocampus during spontaneous activity

Nivaldo A. P. de Vasconcelos, Carina Soares-Cunha, Ana João Rodrigues, Sidarta Ribeiro and Nuno Sousa

The cerebral cortex is an anatomically divided and functionally specialized structure. It includes distinct areas, which work on different states over time. The structural features of spiking activity in sensory cortices have been characterized during spontaneous and evoked activity. However, the coordination among cortical and sub-cortical neurons during spontaneous activity across different states remains poorly characterized. We addressed this issue by studying the temporal coupling of spiking variability recorded from primary sensory cortices and hippocampus of anesthetized or freely behaving rats. During spontaneous activity, spiking variability was highly correlated across primary cortical sensory areas at both small and large spatial scales, whereas the cortico-hippocampal correlation was modest. This general pattern of spiking variability was observed under urethane anesthesia, as well as during waking, slow-wave sleep and rapid-eye-movement sleep, and was unchanged by novel stimulation. These results support the notion that primary sensory areas are strongly coupled during spontaneous activity.

Can somatosensory electrical stimulation relieve spasticity in post-stroke patients? A TMS pilot study

Peres A.S.C., Souza V.H., Catunda J.M.Y., Mazzeto-Betti K.C., Santos-Pontelli T.E.G., Vargas C.D., Baffa O., de Araújo D.B., Pontes-Neto O.M., Leite J.P. and Garcia M.A.C.

Evidence suggests that somatosensory electrical stimulation (SES) may decrease the degree of spasticity from neural drives, although there is no agreement between corticospinal modulation and the level of spasticity. Thus, stroke patients and healthy subjects were submitted to SES (3 Hz) for 30' on the impaired and dominant forearms, respectively. Motor evoked potentials induced by single-pulse transcranial magnetic stimulation were collected from two forearm muscles before and after SES. The passive resistance of the wrist joint was measured with an isokinetic system. We found no evidence of an acute carry-over effect of SES on the degree of spasticity.

NeuroMat's report of activities: research, technology transfer and dissemination

Stochastic models for biological neural networks. “Statiscian brain” conjecture. High-performance computing. Open-source, free softwares. New directions for early diagnosis of Parkinson’s Disease. Brachial-plexus-injury initiative. Wikipedia. The Research, Innovation and Dissemination Center for Neuromathematics (RIDC NeuroMat) has released the report of activities for 2015-2017, to be assessed by the São Paulo Research Foundation (FAPESP) international evaluation committee.

Pages

 

NeuroMat

The Research, Innovation and Dissemination Center for Neuromathematics is hosted by the University of São Paulo and funded by FAPESP (São Paulo Research Foundation).

 

User login

 

Contact

Address:
1010 Matão Street - Cidade Universitária - São Paulo - SP - Brasil. 05508-090. See map.

Phone:
55 11 3091-1717

General contact email:
neuromat@numec.prp.usp.br

Media inquiries email:
comunicacao@numec.prp.usp.br