#visual illusions

So the same rule still applies: hallucinations are your senses creating something that isn't there, and illusions are your senses altering something that is already there.

If you are at your house and home alone with no pets, and you see a panda bear crawling around, that's a hallucination. Nothing is moving like that in your house but your brain created the visual of a panda.

If you are at your house and home alone but you have a large dog, and you see your dog walking around but with the head of a panda, that's an illusion. Your dog is moving around, but your brain changes the visual of the dog's head into the head of a panda.

I'll do another example. But I will be describing bugs and food, read under the cut if you want to, or don't press "read more" if you don't want to read about bugs and food.

The Rotating Snakes Illusion Is a Straightforward Consequence of Nonlinearity in Arrays of Standard Motion Detectors. Bach, M., & Atala-Gérard, L. (2020). I-Perception, 11(5), 204166952095802.

Improving emotional-action control by targeting long-range phase-amplitude neuronal coupling. Bramson, B., den Ouden, H. E., Toni, I., & Roelofs, K. (2020). eLife, 9, e59600.

Divergent projections of the prelimbic cortex bidirectionally regulate active avoidance. Diehl, M. M., Iravedra-Garcia, J. M., Morán-Sierra, J., Rojas-Bowe, G., Gonzalez-Diaz, F. N., Valentín-Valentín, V. P., & Quirk, G. J. (2020). eLife, 9, e59281.

Data‐driven integration of hippocampal CA1 synaptic physiology in silico. Ecker, A., Romani, A., Sáray, S., Káli, S., Migliore, M., Falck, J., … Ramaswamy, S. (2020). Hippocampus, 30(11), 1129–1145.

Synthesis of Conserved Odor Object Representations in a Random, Divergent-Convergent Network. Endo, K., Tsuchimoto, Y., & Kazama, H. (2020). Neuron, 108(2), 367-381.e5.

Precise Holographic Manipulation of Olfactory Circuits Reveals Coding Features Determining Perceptual Detection. Gill, J. V., Lerman, G. M., Zhao, H., Stetler, B. J., Rinberg, D., & Shoham, S. (2020). Neuron, 108(2), 382-393.e5.

Spatial encoding in dorsomedial prefrontal cortex and hippocampus is related during deliberation. Hasz, B. M., & Redish, A. D. (2020). Hippocampus, 30(11), 1194–1208.

A Minimal Biophysical Model of Neocortical Pyramidal Cells: Implications for Frontal Cortex Microcircuitry and Field Potential Generation. Herrera, B., Sajad, A., Woodman, G. F., Schall, J. D., & Riera, J. J. (2020). Journal of Neuroscience, 40(44), 8513–8529.

Mind-Craft: Exploring the Effect of Digital Visual Experience on Changes to Orientation Sensitivity in Visual Contour Perception. Hipp, D., Olsen, S., & Gerhardstein, P. (2020). Perception, 49(10), 1005–1025.

Protonic conductor: better understanding neural resting and action potential. Lee, J. W. (2020). Journal of Neurophysiology, 124(4), 1029–1044.

Stress Alters the Neural Context for Building New Memories. Meier, J. K., Weymar, M., & Schwabe, L. (2020). Journal of Cognitive Neuroscience, 32(12), 2226–2240.

Reward history impacts attentional orienting and inhibitory control on untrained tasks. Meyer, K. N., Sheridan, M. A., & Hopfinger, J. B. (2020). Attention, Perception, & Psychophysics, 82(8), 3842–3862.

Reaching movements are attracted by stimuli that signal reward. Nissens, T., & Fiehler, K. (2020). Attention, Perception, & Psychophysics, 82(8), 3804–3810.

Processing of Hippocampal Network Activity in the Receiver Network of the Medial Entorhinal Cortex Layer V. Rozov, A., Rannap, M., Lorenz, F., Nasretdinov, A., Draguhn, A., & Egorov, A. V. (2020). Journal of Neuroscience, 40(44), 8413–8425.

Septal GABAergic inputs to CA1 govern contextual memory retrieval. Sans-Dublanc, A., Razzauti, A., Desikan, S., Pascual, M., Monyer, H., & Sindreu, C. (2020). Science Advances, 6(44), eaba5003.

Network-level mechanisms underlying effects of transcranial direct current stimulation (tDCS) on visuomotor learning. Sehatpour, P., Dondé, C., Hoptman, M. J., Kreither, J., Adair, D., Dias, E., … Javitt, D. C. (2020). NeuroImage, 223, 117311.

Spatial organization of functional clusters representing reward and movement information in the striatal direct and indirect pathways. Shin, J. H., Song, M., Paik, S.-B., & Jung, M. W. (2020). Proceedings of the National Academy of Sciences of the United States of America, 117(43), 27004–27015.

Wireless Programmable Recording and Stimulation of Deep Brain Activity in Freely Moving Humans. Topalovic, U., Aghajan, Z. M., Villaroman, D., Hiller, S., Christov-Moore, L., Wishard, T. J., … Suthana, N. (2020). Neuron, 108(2), 322-334.e9.

Nasal airflow engages central olfactory processing and shapes olfactory percepts. Yao, F., Ye, Y., & Zhou, W. (2020). Proceedings of the Royal Society B: Biological Sciences, 287(1937), 20201772.

Time-Traveling Illusion Tricks the Brain

Researchers have developed two new illusions that reveal how the senses can influence each other—in particular, how sound can give rise to visual illusions.

From Blue and Black Dresses to Turbine Blades: The Science of 'Fake Fake' Photos

Whether it's a blue and black dress - or white and gold depending on your take - or a pair of legs streaked with white paint, eagle-eyed viewers are always keen to debate a visual illusion when these puzzling images appear online.