This paper presents an experimental proposal to test the Consciousness Causes Collapse (CCC) hypothesis in quantum mechanics. We propose a tabletop experiment employing a single-photon interferometer combined with quantum memory systems capable of preserving which-path information over long timescales. A key innovation in our design is a two-stage readout process: during a 400 ms delay the quantum memories are probed via a quantum non-demolition (QND) readout at moderate coupling strength, and afterward a full readout pulse extracts the stored state for recombination and interference measurement. By implementing a rigorous double-blind, randomized protocol with three conditions (automated recording only, conscious observation of the readout, and a scrambled-signal control in which the observer is present but views non-informative data), we isolate conscious registration of meaningful quantum information as the sole experimental variable. All standard interpretations of quantum mechanics predict identical outcomes across conditions; only the CCC hypothesis predicts a measurable difference. Detailed theoretical background, operational definitions, experimental components, and control measures are provided. This approach bridges philosophical conjecture and empirical test, potentially offering the first direct test of whether consciousness plays a unique role in wave function collapse.