supermassive black holes (SMBHs) can form and grow and perhaps shed light on the nature of the M$_{\rm BH}$-$\sigma$ relation in low-bulge systems. Toward this end, we conducted an archival investigation of 32 late-type galaxies observed by the [*Spitzer*]{} high resolution spectrograph that show no definitive optical signatures of AGN to search for low-power and/or deeply embedded AGN.

This paper is structured as follows. In Section 2, we summarize the properties of the [*Spitzer*]{} archival sample presented in this paper. In Section 3, we summarize the observational details and data analysis procedure, followed by a description of our results in Section 4. In Section 5, we discuss the origin of the \[NeV\] emission , with each galaxy discussed individually, followed by a discussion of the implications of our discoveries in Section 6. A summary of our major conclusions is given in Section 7.

The Sample
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The target sources were selected from the Palomar survey of nearby bright galaxies (H97). Of the 486 galaxies in the Palomar survey, 169 are of Hubble type of Sbc or later and classified based on their optical line ratios as “HII” stellar-powered galaxies or “T2” transition galaxies. T2 galaxies have optical line ratios intermediate 