Table 1.

Alterations in the firing rate of mPFC neural activity during distractor sessions of sustained visual attention

Alteration in firing rateTesting phase
PrelesionUnlesionedPostlesion
Distractor-induced increase12%  (30)10%  (10)3%  (3)*
Distractor-induced decrease6%  (15)11%  (11)12%  (11)
Task-associated increase11%  (28)14%  (14)7%  (7)
Task-associated decrease19%  (48)21%  (21)27%  (26)
No alteration53%  (136)44%  (45)51%  (48)
  • Data are expressed as the percentage of units (absolute number noted in parentheses) displaying alterations in firing rate from the total number of units recorded (prelesion = 257; unlesioned = 102; postlesion = 95).

  • * Significantly different from prelesion (p < 0.05).