Table 1.

Comparison of the amnestic effects of paradoxical sleep deprivation (PSD) and total sleep deprivation (TSD) conditions in the plus-maze discriminative avoidance task (PM-DAT) and in the passive avoidance task (PAT)

Groups	Memory deficit
	PM-DAT (PTAv)	PAT (Latency)
CTRL-PSD	9.06 ± 5.25*	−92.27 ± 29.59*
PSD-CTRL	11.32 ± 1.70*	−83.27 ± 32.98*
PSD-PSD	0.03 ± 1.84	16.09 ± 0.00
CTRL-TSD	23.00 ± 2.32*°	−67.73 ± 4.68*
TSD-CTRL	22.05 ± 1.83*°	−46.73 ± 13.53*
TSD-TSD	22.54 ± 3.99*°	−57.33 ± 11.64*

Results are mean ± SE of the differences from the respective mean CTRL-CTRL value in each sleep deprivation condition (percent time spent in the aversive enclosed arm (PTAv) during the test session for the PM-DAT data and latency (s) to enter the dark chamber during the test session for PAT data). For PAT data, the more negative the data, the greater the memory deficit.

^*P < 0.05 compared to the PSD-PSD group.

^°P < 0.05 compared to the respective PSD group.