In this systematic review of research, the author analyzes studies of neural cortical activation, brain plasticity, and braille reading. The conclusions regarding the brain's plasticity and ability to reorganize are encouraging for individuals with degenerative eye conditions or late-onset blindness because they indicate that the brain can make new connections that have implications for braille reading, tactile perception, and instruction.
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References
1.
AmediA., MerabetL., BermpohlF., & Pascual-LeoneA. (2005). Occipital cortex in the blind. Current Directions in Psychological Science, 14(6), 306–311.
2.
Benoit-DubrocardS., LiegeoisF., & HarlayF. (1997). What does the haptic modality do during cognitive activities on letter shapes? A study with left and right handers. Cortex, 33, 301–312.
3.
BradshawJ. L., NettletonN. C., & SpehrK. (1982). Braille reading and left and right hemispace. Neuropsychologia, 20, 493–501.
BüchelC. (1998). Functional neuroimaging studies of braille reading: Cross-modal reorganization and its implications. Brain, 121, 1213–1229.
6.
BüchelC., PriceC., FrackowiakR. S. J., & FristonK. (1998). Different activation patterns in the visual cortex of late and congenitally blind subjects. Brain, 121, 409–419.
7.
BurtonH. (2003). Visual cortex activity in early and late blind people. Journal of Neuroscience, 23(10), 4005–4011.
8.
BurtonH., SnyderA. Z., ConturoT. E., AkbudakE., OlingerJ. M., & RaichleM. E. (2002). Adaptive changes in early and late blind: A fMRI study of braille reading. Journal of Neurophysiology, 87, 589–607.
9.
GhentL. (1961). Developmental changes in tactual thresholds on dominant and non-dominant sides. Journal of Comparative and Physiological Psychology, 54, 670–673.
10.
GizewskiE. R., TimmannD., & ForstingM. (2004). Specific cerebellar activation during braille reading in blind subjects. Human Brain Mapping, 22, 229–235.
11.
HaradaT., SaitoD. N., KaishikuraK., SatoT., YonekuraY., HondaM., & SadatoN. (2004, August 25). Asymmetrical neural substrates of tactile discrimination in humans: A functional magnetic resonance study. Journal of Neuroscience, 24(34), 7524–7530.
12.
HeremelinB., & O'ConnorN. (1971). Functional asymmetry in the reading of braille. Neuropsychologia, 8, 431–435.
13.
HubelD. (1988). Eye, brain, and vision (Vol. 22). New York: Scientific American Library.
14.
KozelR. J. (1995). Consideration of hand in the reading of braille. RE:view, 27(2), 78–86.
15.
MillarS. (1991). A reversed lag in the recognition and production of tactual drawings: Theoretical implications for haptic coding. In HellerM. A., & SchiffW. (Eds.), The psychology of touch (pp. 301–356). Hills-dale, NJ: Lawrence Erlbaum.
16.
MillarS. (1997). Reading by touch.New York: Routledge.
17.
MommersS. (1982). Braille reading: Effects of different hand and finger usage. Journal of Visual Impairment & Blindness, 74, 338–343.
OldfieldR. (1971). The assessment and analysis of handedness: The Edinburgh Inventory. Neuropsychologia, 3, 97–113.
20.
Pascual-LeoneA., CammarotaA., WassermanE. M., Brasil-NetoJ. P., CohenL. G., & HallettM. (1992). Modulation of motor cortical outputs to the reading hand of braille readers. Annals of Neurology, 34, 33–37.
21.
Pascual-LeoneA., & TorresF. (1993). Plasticity of the sensorimotor cortex representation of the reading finger in braille readers. Brain, 116, 39–52.
22.
Pascual-LeoneA., WassermanE. M., SadatoN., & HallettM. (1995). The role of reading activity on the modulation of motor cortical outputs to the reading hand in braille readers. Annals of Neurology, 38, 910–915.
RexE., KoenigA., WormsleyD., & BakerR. (1995). Foundations of braille literacy. (2nd ed.). New York: American Foundation for the Blind.
25.
RudelR., DencklaM., & SpaltenE. (1974). The functional asymmetry of braille letter learning in normal, sighted children. Neurology, 24, 733–738.
26.
SadatoN., & HallettM. (1999). fMRI occipital activation by tactile stimulation in a blind man. Neurology, 52, 423–424.
27.
SadatoN., OkadaT., HondaM., & YonekuraY. (2002). Critical period for cross-modal plasticity in blind humans: A functional MRI study. NeuroImage, 16, 389–400.
28.
SadatoN., OkadaT., KubotaK., & YonekuraY. (2004). Tactile discrimination activates the visual cortex of the recently blind naive to braille: A functional magnetic resonance imaging study in humans. Neuroscience Letters, 359, 49–52.
29.
SadatoN., Pascual-LeoneA., GrafmanJ., DeiberM.-P., VincentI., & HallettM. (1998). Neural networks for braille reading by the blind. Brain, 121, 1213–1229.
30.
SadatoN., Pascual-LeoneA., GrafmanJ., IbañezV., DeiberM.-P., DoldG., & HallettM. (1996, April 11). Activation of the primary visual cortex by braille reading in blind subjects. Nature, 380(6571), 526–528.
31.
SegalowitzS. J. (1983). Two sides of the brain: Brain lateralization explored.Englewood Cliffs, NJ: Prentice Hall.
32.
SmithJ. (1929). Which hand is the eye of the blind?Genetic Psychology Monographs, 5, 209–252.
SterrA., MüllerM. M., ElbertT., RockstrohB., PantevC., & TaubE. (1998). Perceptual correlates of changes in cortical representation of fingers in blind multifinger braille readers. Journal of Neuroscience, 18(11), 4417–4423.
UhlF., FranzenP., LindingerG., LangW., & DeeckeL. (1991). On the functionality of the visually deprived occipital cortex in early blind persons. Neuroscience Letters, 124, 256–259.
37.
UhlF., FranzenP., PodrekaM., SteinerM., & DeeckeL. (1992). Increased regional cerebral blood flow in inferior occipital cortex and cerebellum of early blind humans. Neuroscience Letters, 150, 162–164.
Wanet-DefalqueM.C., VeraartC., De VolderA., MetzR., MichelC., DoomsG., & GoffinetA. (1988). High metabolic activity in the visual cortex of early blind human subjects. Brain Research, 446, 369, 373.