五分之一的植物人仍能思考并回应
<p><span word="Patients">Patients</span> <span word="thought">thought</span> <span word="to">to</span> <span word="be">be</span> <span word="in">in</span> <span word="a">a</span> <span word="permanently">permanently</span> "<span word="vegetative">vegetative</span>" <span word="state">state</span> <span word="may">may</span> <span word="still">still</span> <span word="be">be</span> <span word="able">able</span> <span word="to">to</span> <span word="think">think</span> <span word="and">and</span> <span word="communicate">communicate</span>, <span word="a">a</span> <span word="study">study</span> <span word="has">has</span> <span word="confirmed">confirmed</span>.</p><p><span word="Scientists">Scientists</span> <span word="using">using</span> <span word="a">a</span> <span word="device">device</span> <span word="to">to</span> <span word="record">record</span> <span word="brainwaves">brainwaves</span> <span word="found">found</span> "<span word="meaningful">meaningful</span>" <span word="responses">responses</span> <span word="from">from</span> <span word="one">one</span> <span word="in">in</span> <span word="five">five</span> <span word="patients">patients</span> <span word="who">who</span> <span word="appeared">appeared</span> <span word="unaware">unaware</span> <span word="of">of</span> <span word="the">the</span> <span word="outside">outside</span> <span word="world">world</span>.</p><p><span word="Experts">Experts</span> <span word="say">say</span> <span word="it">it</span> <span word="could">could</span> <span word="change">change</span> <span word="the">the</span> <span word="way">way</span> <span word="consciousness">consciousness</span> <span word="disorders">disorders</span> <span word="are">are</span> <span word="classified">classified</span> <span word="and">and</span> <span word="may">may</span> <span word="be">be</span> <span word="a">a</span> <span word="practical">practical</span> <span word="method">method</span> <span word="for">for</span> <span word="discovering">discovering</span> <span word="the">the</span> <span word="needs">needs</span> <span word="of">of</span> <span word="patients">patients</span>, <span word="even">even</span> <span word="whether">whether</span> <span word="they">they</span> <span word="still">still</span> <span word="want">want</span> <span word="to">to</span> <span word="live">live</span>.</p><p><span word="Researchers">Researchers</span> <span word="used">used</span> <span word="a">a</span> <span word="portable">portable</span> <span word="electroencephalography">electroencephalography</span> (<span word="EEG">EEG</span>) <span word="device">device</span> <span word="to">to</span> <span word="record">record</span> <span word="electrical">electrical</span> <span word="signals">signals</span> <span word="from">from</span> <span word="the">the</span> <span word="brains">brains</span> <span word="of">of</span> 16 <span word="patients">patients</span> <span word="diagnosed">diagnosed</span> <span word="as">as</span> <span word="being">being</span> <span word="in">in</span> <span word="a">a</span> <span word="vegetative">vegetative</span> <span word="state">state</span>.</p><p><span word="They">They</span> <span word="were">were</span> <span word="told">told</span> <span word="to">to</span> <span word="imagine">imagine</span> <span word="moving">moving</span> <span word="their">their</span> <span word="right">right</span> <span word="hand">hand</span> <span word="and">and</span> <span word="toes">toes</span> <span word="although">although</span> <span word="this">this</span> <span word="was">was</span> <span word="physically">physically</span> <span word="impossible">impossible</span>.</p><p><span word="Three">Three</span> <span word="produced">produced</span> <span word="repeated">repeated</span> <span word="and">and</span> <span word="appropriate">appropriate</span> <span word="brainwave">brainwave</span> <span word="patterns">patterns</span> <span word="which">which</span> <span word="showed">showed</span> <span word="they">they</span> <span word="were">were</span> <span word="aware">aware</span> <span word="of">of</span> <span word="the">the</span> <span word="commands">commands</span> <span word="and">and</span> <span word="able">able</span> <span word="to">to</span> <span word="respond">respond</span> <span word="to">to</span> <span word="them">them</span>.</p><p><span word="The">The</span> <span word="study">study</span> – <span word="which">which</span> <span word="was">was</span> <span word="published">published</span> <span word="in">in</span> <span word="an">an</span> <span word="online">online</span> <span word="edition">edition</span> <span word="of">of</span> <span word="The">The</span> <span word="Lancet">Lancet</span> <span word="medical">medical</span> <span word="journal">journal</span> – <span word="involved">involved</span> <span word="patients">patients</span> <span word="at">at</span> <span word="Addenbrooke">Addenbrooke</span>'<span word="s">s</span> <span word="Hospital">Hospital</span> <span word="in">in</span> <span word="Cambridge">Cambridge</span> <span word="and">and</span> <span word="University">University</span> <span word="Hospital">Hospital</span> <span word="of">of</span> <span word="Liege">Liege</span>, <span word="Belgium">Belgium</span>.</p><p><span word="Previous">Previous</span> <span word="studies">studies</span> <span word="have">have</span> <span word="shown">shown</span> <span word="that">that</span> <span word="functional">functional</span> <span word="magnetic">magnetic</span> <span word="resonance">resonance</span> <span word="imaging">imaging</span> <span word="scans">scans</span> <span word="can">can</span> <span word="uncover">uncover</span> <span word="awareness">awareness</span> <span word="in">in</span> <span word="apparently">apparently</span> <span word="vegetative">vegetative</span> <span word="patients">patients</span>.</p><p><span word="However">However</span>, <span word="fMRI">fMRI</span> <span word="scans">scans</span> <span word="are">are</span> <span word="expensive">expensive</span>, <span word="are">are</span> <span word="often">often</span> <span word="unavailable">unavailable</span> <span word="and">and</span> <span word="can">can</span> <span word="produce">produce</span> <span word="confusing">confusing</span> <span word="results">results</span>.</p><p><span word="Many">Many</span> <span word="brain">brain</span>-<span word="damaged">damaged</span> <span word="patients">patients</span> <span word="also">also</span> <span word="have">have</span> <span word="metal">metal</span> <span word="implants">implants</span> <span word="due">due</span> <span word="to">to</span> <span word="traumatic">traumatic</span> <span word="injuries">injuries</span>, <span word="which">which</span> <span word="rule">rule</span> <span word="out">out</span> <span word="MRI">MRI</span> <span word="scans">scans</span>.</p>
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