Sensory maps in the human brain

  title={Sensory maps in the human brain},
  author={Tony 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. Expand
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. Expand
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. Expand
An Investigation into the performance of Augmented Reality for use in the treatment of Phantom Limb Pain in Amputees
Phantom limb pain is the distressing problem experienced by many amputees, defined as a painful sensation perceived in the area of the missing body part. Phantom limb pain can be very severe andExpand
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. Expand
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. Expand
Typical somatomotor physiology of the hand is preserved in a patient with an amputated arm: An ECoG case study
Electrophysiology remain intact after long term amputation and can be used for BCIs and finger representations are intact and decodable at high (>90%) accuracy. Expand
Bildgebende Untersuchungen des neuronalen Schmerznetzwerks
In diesem Zusammenhang werden Gemeinsamkeiten und Besonderheiten der spezifischen neurologischen Korrelate verschiedener chronischer Schmerzerkrankungen diskutiert. Expand
Brain (re)organisation following amputation: Implications for phantom limb pain
The need to consider potential contributions of additional brain mechanisms, beyond S1 remapping, and the dynamic interplay of contextual factors with brain changes for understanding and alleviating PLP is highlighted. Expand
Comparison of reliability and efficiency of two modified two-point discrimination tests and two-point estimation tactile acuity test.
The modified TPD testing methods demonstrated similar reliability to previous research, even with reduced runs allowing for increased efficiency in performing the test, while the TPE method showed poor reliability. Expand


Behavioral and magnetoencephalographic correlates of plasticity in the adult human brain.
  • V. Ramachandran
  • Biology, Medicine
  • 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 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. Expand
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. Expand
Pain pathways and plasticity
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. Expand
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. Expand
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. Expand
Progression of change following median nerve section in the cortical representation of the hand in areas 3b and 1 in adult owl and squirrel monkeys
The results of studies directed toward determining the time course and likely mechanisms underlying this remarkable plasticity of the cortex representing the skin of the median nerve within parietal somatosensory fields 3b and 1 are described. Expand