Sensory maps in the human brain

  title={Sensory maps in the human brain},
  author={T T Yang and Christopher C. Gallen and B. Schwartz and Floyd E. Bloom and Vilayanur S. Ramachandran and Stanley Cobb},

Upper limb cortical maps in amputees with targeted muscle and sensory reinnervation

Results show how M1 and S1 process signals related to movement and touch are enabled by targeted muscle and sensory reinnervation and suggest that TMSR may counteract maladaptive cortical plasticity typically found after limb loss.

Upper limb amputees can be induced to experience a rubber hand as their own

The findings outline a simple method for transferring tactile sensations from the stump to a prosthetic limb by tricking the brain, thereby making an important contribution to the field of neuroprosthetics where a major goal is to develop artificial limbs that feel like a real parts of the body.

Reliability and Validity of Neuroelectric Source Imaging in Primary Somatosensory Cortex of Human Upper Limb Amputees

The results support the use of multi-electrode EEG recordings combined with MRI as an adequate method for the investigation of the functional organization of the somatosensory cortex in upper limb amputees and suggest high stability of cortical reorganization in these subjects.

An Investigation into the performance of Augmented Reality for use in the treatment of Phantom Limb Pain in Amputees

Using augmented reality, an environment has been created where upper limb amputees can both view and control motion of their phantom limb to help alleviate phantom limb pain.

Referred Sensations Following Stroke

Some misplaced localization to touch in a subject 15 months after cerebral haemorrhage involving the posterior limb of the right internal capsule and lateral thalamus is described, indicating some scrambling of the somatosensory representation of the affected limbs.

Plasticity of plasticity? Changes in the pattern of perceptual correlates of reorganization after amputation.

While the overall extent of reorganization is a rather stable phenomenon, the concomitant changes in the pattern of sensory processing are not, and this may be due to the fact that alterations of sensoryprocessing are not hardwired, but are rather mediated by an extensive and interconnected neural network with fluctuating synaptic strengths.

Structural and functional brain alterations in patients with myasthenia gravis

The results indicate that myasthenia gravis is associated with structural and functional brain alterations that could be associated with cognitive deficits in memory and executive functions and deficits in somatosensory-related spatial orientation.

Relative age effect: beyond the youth phenomenon

The general existence of the relative age effect is found in Olympic athletes regardless of global classification and the findings suggest that coaching staff should be cognisant of the RAE when working with young athletes and should take relative age into consideration when evaluating a burgeoning athlete's abilities.



Behavioral and magnetoencephalographic correlates of plasticity in the adult human brain.

  • V. Ramachandran
  • Psychology, Biology
    Proceedings of the National Academy of Sciences of the United States of America
  • 1993
Recent behavioral and physiological evidence suggests that even brief sensory deprivation can lead to the rapid emergence of new and functionally effective neural connections in the adult human brain.

Noninvasive somatosensory homunculus mapping in humans by using a large-array biomagnetometer.

The ability of magnetoencephalography (MEG) to provide high-resolution spatial maps of the somatosensory system noninvasively in humans should make MEG a useful tool to define the normal or pathological organization of the human somatosENSory system and should provide an approach to the rapid detection of neuroplasticity.

Perceptual correlates of massive cortical reorganization.

In patient VQ, stimuli applied to the lower face or 7 cm above the stump evoked precisely localized referred sensations in individual digits which were often modality specific, indicating the emergence of such maps in regions remote from the stump.

Noninvasive presurgical neuromagnetic mapping of somatosensory cortex.

Objective confirmations considered together with the speed and reliability of the procedure and with the presurgical availability of the results suggests the potential utility of MSI for routine surgical planning.

Pain pathways and plasticity

Massive cortical reorganization after sensory deafferentation in adult macaques.

The results show the need for a reevaluation of both the upper limit of cortical reorganization in adult primates and the mechanisms responsible for it.

Perceptual correlates of massive cortical reorganization.

Patients after upper limb amputation are studied to explore the phenomenon of cortical areas corresponding to that limb becoming responsive to stimuli applied to the face following long-term deafferentation of one upper limb.