What major contributions were made by Hermann von Helmholtz (1821-94)?
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Answer: D. All of the above
Explanation
Hermann von Helmholtz measured the actual physical speed of neural impulse transmissions in nerves. He proved that neural and mental events take measurable time rather than occurring instantaneously. He also made groundbreaking discoveries in physiological optics and auditory sensory perception. Helmholtz used frog motor nerves to calculate how fast electrical signals travel through biological tissue. His work demonstrated that psychological processes have underlying physiological speeds that can be quantified. His contributions spanned physics, physiology, and early experimental psychology laboratories in Europe.
Neuroscientists build upon Helmholtz's foundational neural speed measurements in modern brain research. Medical diagnostics rely on nerve conduction velocity tests developed from early physiological principles. Psychology students learn about Helmholtz to appreciate the physiological roots of cognitive science. Option A correctly identifies his neural speed work but misses his sensory contributions. Option B correctly describes his insight regarding thought and movement timing sequences. Option C correctly notes his massive contributions to vision and hearing sensory psychology.
- Subject
- Psychology
- Category
- Psychology
- Topic
- —
- Difficulty
- medium
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