@article{TEXTUAL,
      recid = {9715},
      author = {Lieber, Justin D. and Bensmaia, Sliman J.},
      title = {High-dimensional representation of texture in  somatosensory cortex of primates},
      journal = {PNAS},
      address = {2019-02-04},
      number = {TEXTUAL},
      abstract = {In the somatosensory nerves, the tactile perception of  texture is driven by spatial and temporal patterns of  activation distributed across three populations of  afferents. These disparate streams of information must then  be integrated centrally to achieve a unified percept of  texture. To investigate the representation of texture in  somatosensory cortex, we scanned a wide range of natural  textures across the fingertips of rhesus macaques and  recorded the responses evoked in Brodmann’s areas 3b, 1,  and 2. We found that texture identity is reliably encoded  in the idiosyncratic responses of populations of cortical  neurons, giving rise to a high-dimensional representation  of texture. Cortical neurons fall along a continuum in  their sensitivity to fine vs. coarse texture, and neurons  at the extrema of this continuum seem to receive their  major input from different afferent populations. Finally,  we show that cortical responses can account for several  aspects of texture perception in humans.},
      url = {http://knowledge.uchicago.edu/record/9715},
}