Though accuracy levels decreased slightly across the sessions, this did not seem to interfere with the rarity strategy approximately the same number of participants showed a preferential memory for the rare partner type in the first and second session.
Measures cumulated across the session were used in the analyses.
This approach captures across-session drift in the location parameters while avoiding the explosion in the number of free parameters and the consequent increased uncertainty in their estimates that would have obtained had all six parameters been free to vary across sessions.
In support of validation there was evidence of strong within- and across-session A/T learning and positive linear trends for across-session SMR/theta and SMR/beta-2 ratio learning.
A multiple-object localizer (including both cropped and naturalistic faces, human bodies, human limbs, houses, places, cars, guitars, words and numbers) was performed eight times (twice each across four sessions); this task was kindly provided by K. Grill-Spector from Stanford University.
An alternating treatments design was used to analyze within- and across-session responding following presession access and presession restriction conditions.
(Figure 3C) and response levels were stable across sessions (session effect: n.s).s
Saccharin self-administration increased across sessions (session effect: F 9, 126) = 14.2, p<0.0001), independently of group (group x session: n.s).s
The variability in level, both within and across digits, and across sessions, was not dependent on experience.
The average auto-correlogram across all sessions confirmed this observation on both the familiar and novel tracks.
First, the early-session increase in omission errors (relative to mid-session), seen for all groups across all sessions on this task, was more pronounced for the High-Pb group than for the controls, with group differences being largest for trials with the longest cue duration (700 msec).
