TABLE 3.

Delayed-match-to-sample – delayed recognition performance by baseline memory function.

	#Subjects	Positive stim	NoStim	Negative stim	%Change positive stim	%Change negative stim
ALL STIM
Impaired	12	75.5% ± 3.9%	61.9% ± 5.1%	56.4% ± 6.4%	22.0%	–8.8%
Normal	12	83.0% ± 3.5%	76.1% ± 4.3%	75.9% ± 5.2%	9.1%	–0.3%
MDM STIM
Impaired	9	77.8% ± 4.6%	65.2% ± 5.9%	63.7% ± 4.9%	19.3%	–2.4%
Normal	10	80.9% ± 4.1%	71.4% ± 5.5%	73.9% ± 6.4%	13.4%	3.6%
MIMO STIM
Impaired	5	73.1% ± 5.2%	54.9% ± 6.8%	40.3% ± 10.9%	33.2%	–26.6%
Normal	6	88.2% ± 3.2%	77.1% ± 6.4%	73.3% ± 6.6%	14.5%	–4.9%

Stimulated and non-stimulated task performance by baseline memory function for subjects receiving CA1 stimulation based on MDM and MIMO models. Positive stim = stimulation patterns derived from modeling correct DMS trials (MIMO) or from MDM patterns that were congruent with the content classification of the Sample/Match image. NoStim = trials with no stimulation delivered. Negative stim = trials with random stimulation patterns (MIMO) or from MDM that were not specific to the content classification of the Sample/Match image). Stimulation was only delivered during the Sample phase of DMS trials, and not delivered during Match phase, nor during the DR assessment. %Change = percentage of increase (+, no symbol) or decrease (–) compared to NoStim.