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(NAS Colloquium) Neuroimaging of Human Brain Function (1998) / Chapter Skim
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The acquisition of skilled motor performance: Fast and slow experience-driven changes in primary motor cortex
Pages 99-106

The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.


From page 101...
... in ~ rapid sclP paced and accurate m~nnerinduced large gains in per~rmanc~ The spend ~ Which the waned ~quenoe could be per~r~edincreased ~crossconsecul~esessioDs,scaIin~ use ymp10le after about 3 Weeks of gamin<; Aim ~ he khan doubling ofth~iniL~1rste{Fi~.l~) and aconcu~rontgainin accuracy <6> This ~ amen Ads ~peciEc ~ 1bc gained hand,~itb nos(~i~cant1~os~r ~ the unarmed band{Fl~ 1~.~40reoveg We ^ Sofa ~gdidnot~ene~t~lh~ performance ~ftbec~ntrolsoqu~nco
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From page 102...
... Prior top, dorsal aspect of 1~ brain. Be a~\itYdepond~n1 blood-~enabon#~I-depend~n1 so Poked # 1
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From page 103...
... . Rover, the pattern of enhanced response to repeblion (a lamer Facet of ~1 t~cli~v~lt:ed fin tilde seco:l~d coped limb the first per~r~n~c intervals was maintained durin~tb~second Third ima~in~ses~on~ even Bribe untrained sequence,~b~b Ads premed only during t:bc weekly sc~lnl~:iIl, sessions.
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From page 104...
... ~ provides an important conceptual framework far describing andaccoundn~ ~rlhchumanskiBlcamin~data(6.8.22,39\ Curimagin~d~asugge~tbatibeacqu1~t~n ofskUled motor performance occurs in Two dating pass in Ail ~ fat a >bin-hrs1-sessio~ Urchin ~~ ~pre~ent~tion oftb~rcp>1ed~ perfumed ~qu~ncesof movement Tom a babitua~onlike decrease to an increase i~lll~he Facet of~mot<~r cortex actuated by ~ given sequence otrepeat~d movement and ~1 ages 3 ~tSkscf Canal: Ella ~ d, diJ>:enli~lropresentalion Abe me once often tbo gained as came pared ~ithlbeun1rainedsequenc~ofl~ovemen1~ Bothsta~cs of sequence Warding me exp~rk~ce specie The awn ~ in ., . .^ proerlng elders, or So laa~nin~, occurs only far those sequencesthalha#cbecnrepeateda widow nu~beroflimesin tb~ses~ion.~ndiliscorrel~ted ~>hsspeci~.si~ni~canlgain in pcr~rmance occurring within the session.
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From page 105...
... ma, a. ma ~ a ~ ~ ~ Lenten ~ ~ ~^ of our mo~suremonl, and it remains to be seen -ctb~r a differential representation of 1be trained sequence begins to evolve even esrEer tan the ~liainmcn1 of asymptotic p~r~rm~nce.\evertheless,ourresultsb~veprovidedwh'1~ebe[~Ldl~ctevidencelhailon~-1ermmotortr~inin~c~nrcsul in si~nib~ant ~perle~depende~1 rco~a~izatio~ in the ad~lfbuman mo10rcor1~x.Thc~edal~provideanimporl~t fink with a~
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From page 106...
... 868 Colloqu:ium ~Paper: ~~'rni ~/ ~< .
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Key Terms

  • trained sequence
  • component movements
  • untrained sequence
  • imaging session
  • performance gains

  • delayed gains
  • brain imaging
  • training session
  • adult brain
  • test interval

  • motor experience
  • motor performance
  • human imaging
  • mammalian brain
  • differential representation

  • initial imaging
  • motor sequence
  • evoked response
  • time window
  • motor tasks

  • changes occur
  • specific representation
  • repeatedly performed
  • control sequence
  • untrained control

  • accumulating motor
  • enhanced response
  • imaging sessions
  • domain participate
  • processing mode


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