Ka nako e telele bafuputsi ba hlokometse hore lintlha tse kang mehopolo, maikutlo , le litebello li ka ama maikutlo a rona ka bohloko. Haeba u lebeletse ho hong ho utloisa bohloko, mohlomong ho tla ntša kotsi hampe. Haeba u halefisitsoe kapa u tšohile, bohloko bo ka 'na ba bonahala bo le matla ho feta kamoo u neng u tla ba kateng haeba u ne u khobile matšoafo.
E le hore re hlalose hore na ke hobane'ng ha likarolo tsa rona tsa kelello li ama maikutlo a bohloko, bafuputsi Ronald Melzack le Patrick Wall ba ile ba fana ka tlhahiso ea seo e tsejoang e le khokahano ea liheke mathoasong a bo-1960.
Khopolo ena e bontša hore mokokotlo oa mokokotlo o na le "heke" ea methapo ea pelo e thibelang lipontšo tsa bohloko kapa ho ba lumella hore ba tsoele pele boong .
Ho fapana le heke ea sebele, e bula le ho koala ho lumella lintho ho feta, "heke" mokokotlong o sebetsa ka ho khetholla pakeng tsa mefuta ea likhoele tse jereng lipontšo. Lipontšo tsa bohloko bo tsamaeang ka likhoele tse nyenyane tsa methapo li lumelloa ho feta ha matšoao a rometsoeng ke mefuta e meholo ea methapo e koetsoe. Tsela ea ho laola thepa e atisa ho sebelisetsoa ho hlalosa phofo ea phantom kapa e sa foleng.
Kamoo Gate e Laolang Katleho kateng
Ka mor'a ho ntša kotsi, lipontšo tsa bohloko li fetisetsoa mokokotlong ebe o fetela bokong. Melzack le Wall li fana ka maikutlo a hore pele boitsebiso bo fetisetsoa bokong, melaetsa ea bohloko e kopana le "methapo ea methapo" e laolang hore na lipontšo tsena li lumelloa ho fetela bokong. Maemong a mang, lipontšo tsena li fetisoa ka mokhoa o bonolo haholoanyane 'me bohloko bo ba teng haholo.
Maemong a mang, melaetsa ea bohloko e fokotseha kapa e thibela ho fihla boko ho hang.
Mokhoa ona oa ho itšireletsa o etsahala lenakeng la mokokotlo oa mokokotlo oa 'mele oa' mele. Matšoao a mabe a methapo (mahlaba a bohloko) le mefuta e meholo ea methapo ea kutlo (mefuta e tloaelehileng bakeng sa ho ama, khatello le lisele tse ling tsa letlalo) ka bobeli li tsamaisa boitsebiso likarolong tse peli tsa lenaka la maqhubu.
Libaka tsena tse peli ke lisele tsa tšoaetso tse fetisang tlhahisoleseding ho fihlela mokokotlo ho boko kapa li-interneurons tse thibelang ho thibela kapa ho thibela phetiso ea boitsebiso ba maikutlo.
Likhoele tsa bohloko li sitisa li-interneuron tse thibelang ho itšireletsa, e leng ho lumellang boitsebiso bo bohloko hore bo fihlele bokong. Mesebetsi e meholo ea fiber, leha ho le joalo, e thabisa li-neurons tse thibelang ho fokotsa, tse fokotsang phetisetso ea boitsebiso ba bohloko. Ha ho e-na le mesebetsi e mengata haholo ea fiber ha e bapisoa le mesebetsi ea mafura, batho ba atisa ho utloa bohloko haholo.
Melzack le Wall li bontša hore ts'ebetso ena e hlalosa hore na ke hobane'ng ha re tloaetse ho ntša kotsi ka mor'a hore e hlahe. Ha u kenyelletsa setulo kapa tafoleng, mohlala, o ka emisa ho senya sebaka seo se lemetseng ka nakoana. Ho eketseha ha tlhahisoleseding e tloaelehileng ea ho itšoara ho thusa ho thibela tšebetso ea mahlaba a bohloko, kahoo ho fokotsa pono ea bohloko.
Tsela ea ho laola thepa e atisa ho sebelisoa ho hlalosa hore na ke hobane'ng ha ho silila le ho ama ho ka ba le mekhoa e metle ea ho laola bohloko nakong ea pelehi. Hobane ts'ebetso e eketsa ts'ebetso e khōlō ea fiber, e na le phello e thibelang maikutlo a bohloko.
Litlhahiso:
Melzack R, & Wall PD (1965). Mekhoa ea bohloko: khopolo e ncha. Saense (New York, NY), 150 (3699), 971-9 PMID: 5320816