Cognitive deficiencies and/or neurological function deficits and/or mood and/or mental disturbances are treated by the administration of 3,3-disubstituted indolines. The indolines have the formula: ##STR1## wherein: p is 0 or 1;Z is O or S;R is C.sub.1 -C.sub.10 alkyl, C.sub.3 -C.sub.8 cycloalkyl, 2-pyridyl, 3-pyridyl, 4-pyridyl or ##STR2## V, W, X, and Y independently are H, halo, C.sub.1 -C.sub.3 alkyl, OR.sup.1, NO.sub.2, CF.sub.3, CN or NR.sup.2 R.sup.2 ;R.sup.1 and R.sup.2 independently are H or C.sub.1 -C.sub.3 alkyl;-- .circle.H and -- .circle.H' independently are 6-membered heterocyclic aromatic rings containing at least one nitrogen atom as a part of the ring optionally substituted with one substituent selected from the group C.sub.1 -C.sub.3 alkyl, halo, OR.sup.1 or NR.sup.1 R.sup.2 ; oran N-oxide or pharmaceutically suitable acid addition salt thereof.