FTA: "A quintessential cognitive task used to measure human working memory is the n-back task. In this study, task variations inspired by the n-back task are implemented in a NWN device, and external feedback is applied to emulate brain-like supervised and reinforcement learning. NWNs are found to retain information in working memory to at least n = 7 steps back, remarkably similar to the originally proposed “seven plus or minus two” rule for human subjects"

Hm, so is the physical design of the device, having been modeled after human, imply the design of synapse networks is going to be limited as much as the human "device"? Are there other species with better n-back performance?