The ultimate objective of this study is to enhance the number of neurons that can be monitored in an extracellular recording captured by a single electrode. This paper focuses on exploring if additive 1/f noise can improve detection sensitivity of spikes captured in an extracellular medium. Detection performance of a simple bandpass filtering stage followed by a threshold-based spike detector is investigated when 1/f noise is added to the filtered signals. The study is performed on both extracellular recorded datasets and synthetic datasets. The preliminary data demonstrated that, threshold-based spike detection of recordings with small amplitude spikes in high background noise can be optimized by a non-zero additive flicker noise. The addition of non-zero additive flicker noise increased the spike detection sensitivity in neurons in regions successively further from the electrode from 0 to as high as 0.8. The results suggest that it may be possible for a single electrode to use multiple spike detection threshold stages to increase sensitivity in a future neural monitoring system.