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\n\tAvustralya\u2019daki The University of Western Australia ara\u015ft\u0131rmac\u0131s\u0131 Prof. Gilles E. Gignac ve ekibinin Intelligence dergisinde yay\u0131mlad\u0131\u011f\u0131 \u00e7al\u0131\u015fmaya g\u00f6re, insan zihninin t\u00fcm psikolojik bile\u015fenleri de\u011ferlendirildi\u011finde, en y\u00fcksek genel bili\u015fsel performans 55\u201360 ya\u015f aral\u0131\u011f\u0131nda g\u00f6r\u00fcl\u00fcyor.<\/p>\n
\n\tBilim insanlar\u0131, mant\u0131ksal d\u00fc\u015f\u00fcnme, haf\u0131za, bilgi d\u00fczeyi ve i\u015flem h\u0131z\u0131n\u0131n yan\u0131 s\u0131ra, ki\u015filik \u00f6zellikleri ve duygusal denge gibi 16 farkl\u0131 psikolojik boyutu inceledi. Bu boyutlar aras\u0131nda \u201cb\u00fcy\u00fck be\u015fli\u201d ki\u015filik \u00f6zellikleri (d\u0131\u015fad\u00f6n\u00fckl\u00fck, duygusal istikrar, vicdanl\u0131l\u0131k, deneyime a\u00e7\u0131kl\u0131k ve uyumluluk) da yer ald\u0131.<\/p>\n
\n\tAra\u015ft\u0131rmaya g\u00f6re, baz\u0131 bili\u015fsel beceriler ya\u015fla birlikte azalsa da, vicdanl\u0131l\u0131k 65 ya\u015f\u0131nda, duygusal denge ise 75 ya\u015f\u0131nda zirveye ula\u015f\u0131yor.<\/p>\n
\n\tAyr\u0131ca ahlaki muhakeme ve bili\u015fsel \u00f6nyarg\u0131lara direnme kapasitesi de 70\u2019li ya\u015flara kadar geli\u015fmeye devam ediyor.<\/p>\n
\n\tT\u00fcm veriler bir araya getirildi\u011finde, zihinsel i\u015flevlerin 55\u201360 ya\u015fta en y\u00fcksek seviyeye \u00e7\u0131kt\u0131\u011f\u0131, 65 ya\u015f\u0131ndan itibaren yava\u015f yava\u015f azalmaya ba\u015flad\u0131\u011f\u0131, 75 ya\u015f sonras\u0131nda ise d\u00fc\u015f\u00fc\u015f\u00fcn h\u0131zland\u0131\u011f\u0131 tespit edildi.<\/p>\n
\n\tAra\u015ft\u0131rmac\u0131lara g\u00f6re, bu sonu\u00e7lar neden bir\u00e7ok liderin, \u00fcst d\u00fczey y\u00f6neticinin ve siyaset\u00e7inin 50\u2019li ya\u015flarda en ba\u015far\u0131l\u0131 d\u00f6nemini ya\u015fad\u0131\u011f\u0131n\u0131 a\u00e7\u0131kl\u0131yor.<\/p>\n
\n\tProf. Gignac, \u201cYa\u015fla birlikte baz\u0131 yetiler zay\u0131flasa da, artan deneyim, duygusal denge ve ahlaki muhakeme bu kay\u0131plar\u0131 telafi ediyor. Bu da daha dengeli kararlar al\u0131nmas\u0131n\u0131 sa\u011fl\u0131yor\u201d dedi.<\/p>\n
\n\tAra\u015ft\u0131rma, ya\u015f temelli \u00f6nyarg\u0131lar\u0131n da sorgulanmas\u0131 gerekti\u011fini vurguluyor. \u00c7\u00fcnk\u00fc baz\u0131 bireylerde mant\u0131ksal d\u00fc\u015f\u00fcnme ve haf\u0131za h\u0131z\u0131nda d\u00fc\u015f\u00fc\u015f g\u00f6r\u00fclse de, di\u011ferlerinde bu beceriler uzun s\u00fcre korunabiliyor.<\/p>\n
\n\tBilim insanlar\u0131na g\u00f6re bu bulgular, i\u015fe al\u0131m ve kariyer de\u011ferlendirmelerinde ya\u015f de\u011fil, bireysel becerilerin esas al\u0131nmas\u0131 gerekti\u011fini g\u00f6steriyor.<\/p>\n
\n\tProf. Gignac \u00e7al\u0131\u015fmay\u0131 \u015f\u00f6yle \u00f6zetliyor:<\/p>\n
\n\t\u201cOrta ya\u015f bir gerileme de\u011fil, insan zihninin olgunluk ve denge a\u00e7\u0131s\u0131ndan ula\u015ft\u0131\u011f\u0131 zirve noktas\u0131d\u0131r. Toplumun bu d\u00f6nemi bir \u2018geri say\u0131m\u2019 de\u011fil, bir \u2018zirve\u2019 olarak g\u00f6rmesi gerekiyor.\u201d<\/p>\n