Cognitive control – the ability to regulate information processing in line with current goals – is an important aspect of cognitive functioning. We examined whether uncertainty in cognitive control demands leads to higher processing of cues that can help resolve this uncertainty. We administered the Go/NoGo task with two NoGo:Go ratio manipulations (4:5 and 1:6). Before the presentation of the Go/NoGo target, colored cues that were either reliably predictive (80%) or unpredictive (50%) of the target type were shown. The neurophysiological data was analyzed with time-frequency and beamforming approaches to understand the oscillatory dynamics and their sources. Aperiodic activity was also analyzed to examine the effects on neuronal “noise”. The behavioral results showed an effect of the cues only in the high uncertain (4:5), predictive cues (80%) condition indicating that uncertainty in the demands of response inhibition makes people susceptible to external cues that can help resolve this uncertainty. This was accompanied by strong alpha band activity in the orbitofrontal cortex following cue onset only in the 80% 4:5 condition suggesting that alpha band activity plays a significant role in the selective processing of cues relevant to the current task. Aperiodic components showed no reliable effects. These findings have implications towards understanding the relationship between information-seeking and uncertainty in the context of cognitive control and the role of periodic and aperiodic neural activity.