“…Two studies observed memory impairments after stress (Payne et al, 2002;Jelicic et al, 2004), whereas most studies to date found no significant difference between the stress and the nonstress conditions (Kirschbaum et al, 1996;Wolf et al, 2001b;Domes et al, 2002;Takahashi et al, 2004). Several of the latter, however, observed associations between poorer memory and a stronger stress-induced cortisol increase within the treatment group (Kirschbaum et al, 1996;Wolf et al, 2001b;Takahashi et al, 2004). Only two studies have tested the effects of psychosocial stress on memory retrieval but failed to find significant effects, possibly for several reasons, which will be discussed later (Wolf et al, 2002;Domes et al, 2004).…”