Pierre Marie Felix Janet (1859-1947) Setsebi sa kelello sa Mofora, setsebi sa kelello le rafilosofi.
O ile a ithuta Sekolong se Phahameng se Tloaelehileng le Univesithing ea Paris, ka mor'a moo a qala ho sebetsa lefapheng la psychopathology Le Havre. O ile a khutlela Paris ka 1890 mme a khethoa ke Jean Martin Charcot ho etella pele laboratori ea kelello tleliniking ea Salpêtrière. Ka 1902 (ho fihlela 1936) e ile ea e-ba moprofesa oa thuto ea kelello College de France.
Ho tsoela pele ka mosebetsi oa ngaka JM Charcot, o ile a hlahisa maikutlo a kelello ea methapo ea kutlo, eo, ho ea ka Jean, e thehiloeng ho tlōlo ea mesebetsi ea maiketsetso ea kelello, ho lahleheloa ke ho leka-lekana pakeng tsa mesebetsi e phahameng le e tlaase ea kelello. Ho fapana le psychoanalysis, Janet o bona likhohlanong tsa kelello eseng mohloli oa methapo, empa thuto ea sekondari e amanang le tlōlo ea mesebetsi e phahameng ea kelello. Sebaka sa ho hloka tsebo se lekanyelitsoe ke eena ho mefuta e bonolo ka ho fetisisa ea li-psychic automatisms.
Lilemong tsa bo-20‒30. Janet o ile a hlahisa khopolo e akaretsang ea kelello e thehiloeng kutloisisong ea kelello e le saense ea boitšoaro. Ka nako e ts'oanang, ho fapana le boitšoaro, Janet ha a fokotse boitšoaro ho ea liketsong tsa mathomo, ho kenyelletsa le tsebo ea tsamaiso ea kelello. Janet o boloka maikutlo a hae ka psyche e le tsamaiso ea matla e nang le maemo a mangata a tsitsipano a lumellanang le ho rarahana ha mesebetsi ea bona ea kelello. Motheong ona, Janet o ile a qapa mokhoa o rarahaneng oa maemo a phahameng a boitšoaro ho tloha liketsong tse bonolo ka ho fetisisa tsa reflex ho ea liketsong tse phahameng tsa kelello. Janet o hlahisa mokhoa oa histori oa kelello ea motho, o hatisa boemo ba boitšoaro ba sechaba; lihlahisoa tsa eona ke thato, mohopolo, monahano, ho itšepa. Janet o hokahanya ho hlaha ha puo le kholo ea mohopolo le mehopolo mabapi le nako. Ho nahana ho latela liphatsa tsa lefutso ke eena ho nka sebaka sa ketso ea sebele, e sebetsang ka sebōpeho sa puo e ka hare.
O bitsitse mohopolo oa hae saekholoji ea boitšoaro, e ipapisitseng le lihlopha tse latelang:
- "ketso"
- "ketso"
- "Ketso"
- "mekhoa ea mantlha, ea bohareng le e phahameng"
- "matla a kelello"
- "khatello ea kelello"
- "maemo a kelello"
- "Psychological economy"
- "mental automatism"
- "matla a kelello"
Likhopolong tsena, Janet o ile a hlalosa neurosis, psychasthenia, hysteria, likhopotso tse sithabetsang, joalo-joalo, tse ileng tsa hlalosoa motheong oa bonngoe ba ho iphetola ha mesebetsi ea kelello ho phylogenesis le ontogenesis.
Mosebetsi oa Janet o kenyelletsa:
- "Boemo ba kelello ba bakuli ba nang le hysteria" ( L'tat mental des hystriques, 1892)
- "Likhopolo tsa sejoale-joale tsa hysteria" (Quelques definitions recentes de l'hystrie, 1907)
- "Pholiso ea kelello" (Les mdications psychologiques, 1919)
- "Psychological Medicine" (La mdicine psychologique, 1924) le libuka tse ling tse ngata le lihlooho.