The review discusses Konorski's perspective on the relationship between mental experiences and specific nervous processes in the brain. Konorski suggests that mental experiences are linked to particular evoked potentials in the brain, and similar experiences can be expected in animals when they produce the same electrophysiological responses. However, the reviewer notes that this assumption is difficult to prove or disprove due to the complex nature of sensory inputs. The reviewer also emphasizes that mental activity depends on both sensory perception and past experience, which are not easily detectable at the level of sensory inputs. Despite these limitations, experimental studies on perceptions and neurophysiological responses in animals are crucial for understanding psycho-physical correlations. The book is praised for its clarity and thorough documentation, making it a valuable resource for modern thinking about cerebral mechanisms in animals and humans.The review discusses Konorski's perspective on the relationship between mental experiences and specific nervous processes in the brain. Konorski suggests that mental experiences are linked to particular evoked potentials in the brain, and similar experiences can be expected in animals when they produce the same electrophysiological responses. However, the reviewer notes that this assumption is difficult to prove or disprove due to the complex nature of sensory inputs. The reviewer also emphasizes that mental activity depends on both sensory perception and past experience, which are not easily detectable at the level of sensory inputs. Despite these limitations, experimental studies on perceptions and neurophysiological responses in animals are crucial for understanding psycho-physical correlations. The book is praised for its clarity and thorough documentation, making it a valuable resource for modern thinking about cerebral mechanisms in animals and humans.