Visiting museums

If we’re going to be candid, what can a museum give us that a book or an excellent online image cannot?  Is the main reason for visiting a museum to talk later about how wonderful it was?    Many visitors to museums probably derive little of value they couldn’t have gotten, with a lot less work and expense, by staying home.  How then do we answer the question, “Why visit a museum?”

 Paintings and other 2D objects

 It is tempting to assume that because a painting or sketch is two-dimensional (i.e., flat), a high-resolution photograph or digital image captures at least most of its total visual essence.  In fact, however, well-documented differences exist in the physiological responses to viewing actual paintings and flat images. 

For example, in 2024 in a study at the Mauritshuis Museum in The Hague, volunteers fitted with mobile EEG headsets viewed three masterwork paintings and posters of the paintings in a controlled setting.  A standard measure of emotional response (approach/avoidance, measured in the prefrontal cortex) was used to record reactions.  The mean score for the paintings was ten times higher than the mean for the posters.  The paintings engaged the precuneus and parietal-occipital networks in a repeating cycle of attraction and emotional processing that died out quickly when viewing the posters.  Similar results were reported in a study at the University of Vienna’s Department of Basic Psychological Research and Research Methodology.

 Why does such a large difference exist in the physiological response to viewing actual paintings and images of them on a printed page or monitor?  Two obvious reasons are that paintings in a museum are often much larger than the images of them and that, for many people, knowing one is standing beside a frame actually painted by the artist is a very different experience than looking at a book.  Three more subtle reasons for the difference also exist.

 First, in many paintings, the pigment has peaks and ridges that produce a complex and subtle pattern of light and dark areas.  As you view a painting, slight shifts in viewing location cause those microscopic shadows and glints to shift. Your brain uses these dynamic cues to perceive the paint as a tangible, physical paste applied by a human hand. A photograph freezes the lighting from a single photographic flash or studio setup, turning a living, responsive texture into static pigment print or flat pixels.

Second, cameras, computer screens, and high-end printing presses create colors by mixing just three or four baseline inks or subpixels. The palette they can simulate is limited and forms a smaller "box" (gamut) than the total spectrum visible to the human eye. When a camera or printer encounters a pigment color that lies outside its box, it cannot recreate it so it must use the the closest available substitute.  Placed side by side under good light, the actual painting will exhibit vivid hues, subtle saturation nuances, and chromatic depth that the print cannot render, making the reproduction appear flatter or subtly shifted in tone.

 Third, when you look at a flat reproduction, both eyes receive virtually identical, static 2D information regardless of slight head movements, so the brain identifies it immediately as a flat, printed representation.  When you look at an original oil painting, tiny head movements (and the spacing between your two eyes) feed your visual cortex subtle micro-variations in gloss, refractive path, and depth cues. The brain synthesizes these dynamic cues and interprets them not as a flat picture, but as a rich, three-dimensional material presence.

 With monitors, an additional difference is that the viewer is looking at an emitter (photons fired from a light source through colored filters directly into your retina). Looking at an oil painting is strictly subtractive—your eye receives light that survived multiple passes of physical absorption and scattering through a resin-oil matrix. The visual brain perceives self-luminous objects (glowing screens) differently from reflective, translucent volumes.

Sculpture and other 3D objects

Everything said above about “flat” art like paintings, drawings, and charcoal sketches, applies to sculpture and other 3D objects but the differences between viewing a real 3D object at close range, and an image of it, are even more pronounced.

The most important and obvious difference between the sculpture and images of it is that one can usually walk at least part way around the sculpture thereby getting many more impressions of it than is possible from one or even several images.  Furthermore, sculptures are usually many times larger than images of them.  Looking at an image is thus a dim version at best of being in the presence of the object.  In addition, at least five important sensory processes differ in fundamental ways between studying an object at close range and looking at images of it.  The subject is complex and probably not of interest to most of our readers so we do not pursue it here.  For those interested, we suggest asking your AI “Why is visiting a sculpture so much different from looking at pictures of it?”

Conclusion

Some of the values of visiting a museum are subtle and easily missed during a rapid visit.  But “slow looking”, as described elsewhere on this website, at a few paintings or sculptures will be a completely different, more rewarding, and far more memorable experience than looking at the same objects in a book or online.