Showing posts with label 04 Sensation and Perception. Show all posts
Showing posts with label 04 Sensation and Perception. Show all posts

Wednesday, March 28, 2012

The Scientific American Day in the Life of Your Brain



I was going through my books today and rediscovered a wonderful reference for class.  It's called The Scientific American Day in the Life of Your Brain.  It takes a person from 5 am and waking up, what brain chemicals are activating us and other sensory issues.  It goes on to deal with coming to consciousness, morning emotions, directions to work, facing others, performance at work/stress, decision making, the hungry brain, the tired brain, boredom, pain, exercise, the dimming of the day, getting home from work, music, humor, love and lust, getting to sleep, falling to sleep, sleeping and problems, and people who have to work at night.  The book is at a reading level appropriate for those of use brushing up on brain science as well as high school students.

In short, take any person on any day and the book will have a section on what is happening in a person's brain.  I can imagine a creative teacher, with proper resources, making this a class assignment--what is going on with the brain and rest of the biology of humans during each part of the day, and dividing it up like the chapters/sections of this book.  If you do that, just keep this book hidden ;)


posted by Chuck Schallhorn

Monday, March 26, 2012

"Multi-tasking"/Task Switching tests


I discovered two "multi-tasking" tests via Twitter recently and they both look like they might be useful during the Cognition or Sensation and Perception chapters (whenever you discuss selective attention, etc.)


  • The Dual Task website created by Hal Pashler has several very effective tests for "multi task performance." The one I tried is the "Visible PRP Effect" When you click on that link, you may have to wait a bit for an "applet" to load, but after that the test ran smoothly, and it is a very effective demonstration of how trying to attend to more than one "channel" impairs performance. 
  • Sue Frantz tweeted a test from the Scientific American website: "Test Your Multitasking Skills" This demonstration is more complicated, with graphics and more complex instructions, but the scenario it uses is engaging and effective. 
These demonstrations could be extended into conversations about the "multi-tasking" many of us commonly engage in, and the specific topic near and dear to many of our students hearts: talking on the phone while driving. 



posted by Rob McEntarffer

Tuesday, January 10, 2012

Tuesday, December 13, 2011

More than Mouse Party

It's not that Mouse Party isn't one of the most amazing websites for teaching about how various drugs affect neural tranmission - CAUSE IT IS - but there's a lot more to this site than just Mouse Party. Check out some other offerings from the Genetic Science Learning Center at the University of Utah:

Oh - did I mention the lesson plans and activities? Oh my!

So - how do you use Mouse Party and these other sites in your class? Have you played Cerebral Commando or used any of these other links? Please share below!

P.S. I could listen to the Mouse Party music all day. Is that wrong?
-- posted by Steve

Wednesday, November 30, 2011

Guinness Record for 3D street art!

If you're not done with sensation and perception yet (or if you have time to go back, briefly) this world-record breaking effort at 3D street art might be worth sharing with your students. A huge understanding - these pictures show a bit of the "planning" and the final product, and this video includes an interview with one of the organizers/artists. Students could try to spot the monocular depth cues used!


posted by Rob McEntarffer

Sunday, November 27, 2011

The Flavorists on 60 Minutes

On tonight's (11/27/2011) episode of 60 Minutes, there is a nice piece on the flavor industry and their attempt to create "addictive flavors" to woo consumers.  Lots of potential here.

The link to the segment with script
The video segment itself:  it's 14 minutes long

One of the things I make sure to mention to my students during this unit is the use of language in terms of sights, sounds, smells, and flavors.  We are often lacking in describing smells and tastes that those in other cultures would easily describe.  To me, this is an important part of psychology--how do we understand the world around us and how can we best communicate it to others?


posted by Chuck Schallhorn

Tuesday, November 15, 2011

Psych Songs!


Our topic in psychology club this morning was "Brains!" One of our great club members asked me if I'd heard "Phineas Gage: A Song" on youtube and I said "No, but I need to!" As far as I can tell, the song is not only catchy, it's pretty accurate! (although I never heard the detail about a tea cup full of brains?)

The song reminds me of the only other direct psych-concept to song translation: "John Lee Supertaster" by one of my favorite bands, They Might be Giants (that youtube clip isn't a great version of the song - the lyrics might be more useful)

Does anyone know any other "direct" connections between songs and psych concepts? Please chime in in the comments!

(PS: If you have kids, I think the They Might be Giants kids albums are a must-have. Great music that are perfect for little ears. The science album is my favorite :)



Picture credit: http://cheezburger.com/HockeyRaven/lolz/View/293971712

posted by Rob McEntarffer

Wednesday, October 19, 2011

Research invitation from David Eagleman


We've posted about David Eagleman before(and here). He's a skilled neuroscience writer/researcher who has a knack for finding fascinating consciousness issues and writing/talking about them in compelling and understandable ways.

He posted an invitation on Twitter this morning: "Do you hate the sound of certain words? This may be a form of synesthesia. Pls participate in our 5 min survey: words.eaglemanlab.net"

I haven't followed the link through to the research yet (I'll have to do it at home) but if any of you out there have time to take the test, please comment about your experiences here! Might be an opportunity to get students involved in research in an easy and engaging way?

posted by Rob McEntarffer

Friday, September 23, 2011

Reconstructing Visual Perception using fMRIs - Wowza!


I'm still trying to wrap my head around this research, but ... WOWZA!

(Note: Follow any of the links on this page in order to see videos of this in action)

Researchers from University of California, Berkeley used fMRI scans to "reverse engineer" images of how the brain might put together visual stimuli. Below is their "simple outline" of the study (taken from their summary on the Gallant Lab web page).

"The goal of the experiment was to design a process for decoding dynamic natural visual experiences from human visual cortex. More specifically, we sought to use brain activity measurements to reconstruct natural movies seen by an observer. First, we used functional magnetic resonance imaging (fMRI) to measure brain activity in visual cortex as a person looked at several hours of movies. We then used these data to develop computational models that could predict the pattern of brain activity that would be elicited by any arbitrary movies (i.e., movies that were not in the initial set used to build the model). Next, we used fMRI to measure brain activity elicited by a second set of movies that were completely distinct from the first set. Finally, we used the computational models to process the elicited brain activity, in order to reconstruct the movies in the second set of movies"

It's a tricky one to understand - I think the summary on the Gizmodo blog is a bit more clear, and this summary article in a Berkeley newsletter includes quotes that might help.

Here's how I think I'd summarize it for students (and there is a STRONG chance I might be wrong here, so please correct me in the comments!): Participants spent time (a long time!) in an fMRI watching movie trailers, and the researchers used that data to create a model of what their brains were doing while watching the movies. Then they collected a LOT of random youtube clips and transformed them into data ("voxels") the computers could compare with the fMRI data they stored from the participants. The computers picked the youtube clips that best matched the fMRI data, and smooshed all those video clips into a composite video. When we watch the composite video, we can see the similarities to the original clips the fMRI participants watched (although there is a high chance of confirmation bias here, right?)

Please holler in the comments about this if you have time - I'd love to know if I'm understanding this correctly!









posted by Rob McEntarffer

Saturday, July 30, 2011

New Society for Neuroscience Website--

The Society for Neuroscience has created a wonderful resource that could potentially be utilized by those of us who can get our kids to the internet or for use during snow days or other cancellations.  It could also be used in a webquest.  Wonderful name as well:  "NERVE: Virtual Encycloportal."  I do believe they have engaged in creating a new word, a neologism. 

After the welcome page, the user is directed to this page where there are links to various themes including addiction, anatomy of the brain, and much more as you can see from the graphic on the left.

Each theme has numerous links to other resources that provide an incredible wealth of information and graphical representation of each topic.  One could literally spend days examining all the sites.

In fact, I will be starting my background research for my neuroscience, mental health, and sensation and perception units from this page.  There are just so many incredible resources. 

Do take the time to visit the site and search through the topics. 



Core Concepts in Neuroscience is a booklet that is downloadable for teachers and students to use.  Not only is there the booklet, but there is a short PowerPoint that you can download.

posted by Chuck Schallhorn

Saturday, March 5, 2011

You'll Never Think About Food and Taste the Same Way Again

As often happens, I had "an NPR moment" when I was driving home from school yesterday.  I was listening to my local station, KUSP (to the show Fresh Air) when I heard part of this story about a chef who had lost his sense of taste.  This led him into viewing taste through the sense of smell.  He has a different and engaging voice and a passion about smell and taste that comes through in the interview. The interview is with Grant Achatz and can be read and/or listened to here.


Posted by Chuck Schallhorn

Thursday, March 3, 2011

Ethical Connections in Psychology: Grilling for Science!


One of my favorite assessment/grading bloggers (and yes, I have several, which I know says a lot about me) recently did a classroom activity that might be interesting high school psych teachers, Shawn Cornally (who blogs about science teaching and standards based grading at ThinkThankThunk) decided to grill up some meat for his students to see if they could taste the difference between ethically raised vs. factory raised meat His goal was to get students thinking and help them become "more aware of their food." This might be a great activity in a psych class during sensation and perception: Can students taste the differences between different kinds of food based on how it was grown/raised? What difference thresholds are involved? Perceptual sets? Cultural expectations? And it might be at great connection to ethics - what are the ethical implications of differences in taste, or lack of differences?

This activity might be good in combination with the "Attack of the Blue Tongue" supertaster/non-taster demonstration many of us already do. Thanks for the idea Shawn!

posted by Rob McEntarffer

Monday, February 14, 2011

Mind Lab from Japan Science and Technology Agency

I was doing some spring cleaning of my computer and rediscovered this gem in my email box. The site is called Mind Lab.  Here is the "Internet Scout Report" write up of this very cool site:

How do we perceive the outside world? How is our consciousness connected to the world? These are all important questions, and the JST Virtual Science Center in Japan is intimately concerned with such matters. This media-rich site takes interested parties on a journey to "explore the unconscious functions of the brain with visual illusions and mysterious perceptual phenomena." The site contains four interactive sections, including "Illusion of an Uninterrupted World" and "Visual Interpretation of the Physical World". Each of the sections features a brief narrated overview of the selected topic and then visitors can take part in 16 different "trials". These "trials" allow users to experience "visual phenomena and illusions used for study in psychological experiments." One can easily envision that this site could be used in an introductory college-level psychology course or another related discipline.
Take the time to examine each of the four modules.  If you need an independent project for your at-home students or some excellent demos for a few key S&P concepts, check out this site.

posted by Chuck Schallhorn

Thursday, February 10, 2011

The Music Instinct: Science and Song

In my recent PBS newsletter, I noticed something about music and science, but it was geared toward grades 3-5.  The combination intrigued me and I went to the site anyway.  What I found was a delightful blend of music, neuroscience, sensation and perception ideas.  What PBS has done was to take the documentary that had aired previously (and I watched and promptly forgot about since it did not fit in perfectly with my lessons) and divided it into 3 minute clips, each of which introduced a different musical concept.  Most clips also mention how the brain interprets these signals and likes or does not like the signals.  One example is major and minor chords.  Here, in the West, we tend to think of minor chords as sad.  This is not universal.  Much of our musical preferences are learned.  For those who like music theory, there is something for you here as well.

Here are the various links for each section--complete with lesson plans/ideas.


posted by Chuck Schallhorn

Monday, January 3, 2011

Elephant Communication and Infrasound

On December 27, 2010 on 60 Minutes, there was a segment repeat on elephants and communication (which can be found here).

The show examines the research methods for both naturalistic observation as well as analysis of the various frequencies of sounds.  As it turns out, elephants can create sounds that are below the level of human hearing which is about 20 Hertz.  The researcher has a wonderful explanation the process of how this was discovered.

The context of this for me is a demonstration of how there are visual and auditory frequencies that we cannot detect.  More on this topic later.


Here are some other sites that examine both the elephant communication system and infrasound.

The Elephant Listening Project

History/Overview of Infrasound on Wikipedia



posted by Chuck Schallhorn

Wednesday, December 29, 2010

Visual Jokes in Art History

Psychologists were not the first people to be interested in visual illusions nor the use of illusions or multiple interpretations within a painting.  The January 2011 issue of Smithsonian has a great article called "Feast for the Eyes" along with pictures about the artist Giuseppe Arcimboldo who did such work for the Hapsburg dynasty (in the 1500s) who had humor enough to appreciate his work.  Check out the article at the link above-quite fascinating.

If you like the work of Arcimboldo, check out his complete works on this site.


posted by Chuck Schallhorn

Sunday, December 26, 2010

A Natural History of the Senses

A Natural History of the Senses is an excellent book by Diane Ackerman.  You may wonder why I share this book from 1990 now.  If you appreciate words and writers' views of the world along with fantastic turns of phrase, this book is for you.  If you teach psychology within a Humanities department, this book will be an excellent resource.

She, of course, takes from the writings of many sources dealing with all the senses.  Perhaps my favorite is when she examines how "bad smells" are dealt with medically.  Apparently, the Merck Manual has a category on flatulence.  Whether she is citing sweetness of smell or something musky or acrid, Diane Ackerman shares with the reader a delightful romp through history, psychology, and literature to enlighten us as to how people have perceived and used the senses in their daily lives.  A good read and worth quoting in class.




Below are two other excellent books related to psychology from Diane Ackerman:






posted by Chuck Schallhorn

Sunday, December 19, 2010

The Power of Silence

Late yesterday afternoon, my neighborhood lost power due to a "winter" storm.  All told, we were without power for about four hours.  For me, it was four hours of bliss.  I went to the mailbox, seeing several neighbors who had come outside to see if they were alone in the powerlessness.  I then walked to the garage, grabbed a couple of fire logs, and built myself a fire.

I was no longer connected to the interwebs; the tv was not working; and there was no hum from the fridge or from the air purifier.  I refused to put on the earphones of my iPod.  I listened to the rain as it got darker and the fog rolled in.  That, in combination with the fire were, to me, priceless--one of those times when my needs were met with some outside event.

You see, I need silence.  I need solitude.  When I was growing up, I had a series of ear infections and ear aches that cost me part of my ability to hear.  I was 75% deaf in one ear, 50% in the other.  I started school one year later than the other kids because of this.  When I was ten, I had surgery to put a little blue tube in each ear drum to release the fluid build up.  I could not swim for a year and had to keep water out of my ears (had to wear earplugs during showers).  The days after the surgery were the most intense pain I've ever felt--I lay on the couch having ear drops used to lessen the pain.  But I could hear things I'd never heard before--the birds, the traffic, the sounds that we all try to put out of our consciousness, but without which we would feel somewhat empty.  This was part of my introduction to silence by choice versus imposed silence.

My students seemingly need noise, distraction, something to grab at their attention, rarely listening to the voices in their heads (the self-talk kind, not the hallucinatory kind).  When I tell them I need silence from time to time, they look at me like I am crazy.  I tell them that time moves differently when there is silence--it goes more slowly and I can do more of what I need to do, including think. 

I did some cursory research on the issue and found not nearly enough to my liking.  There were many items on meditation and prayer and the power of silence in relation to those practices.  There was even a little about American culture and how Americans tend not to like silence--we will fill up silence with words rather than let the silence sit there, lingering.

As I write this, I am reminded of a story Desmond Morris told of an African tribal group where women did not speak for about six months (if I recall correctly) as a method of mourning the loss of a loved one.  They had developed a wealth of signs to communicate, but speaking was forbidden.

I recall a radio interview some years ago with an author who explained that people who cannot handle silence cannot handle the thoughts that are in their own head.  I do not know of research, but that sounds intuitively true.  In our culture, our children are growing up increasingly distracted--I have students who are very uncomfortable just sitting still during or after an exam.  "Can I listen to my iPod. . .please?" are the plaintive cries, especially this past week during finals. I often think to myself, "What are you afraid of with the silence?  Will it hurt you?  Do you not like what you will find in the world without external noise?  Are you afraid of your inner voice?  Are you so addicted to distractions that it hurts to have silence?"  And I wonder on.

What can one do with this topic in class?  I offer some suggestions:
  1. Explain the importance of silence both in terms of culture (social psychology) and in terms of perception--how does time perception change?  You could do a demonstration with students closing their eyes--you will not tell them how long--have them estimate how long--then tell them the actual time.  Discuss implications of this perception change.
  2. Have the students listen to the sounds of the classroom--can they hear the buzz of the lights?  Can they hear traffic (my classroom is at one of the busiest corners in town)?  Can they hear the shuffling of papers, the crinkling of gum or candy wrappers?  Are they aware of how much noise they themselves make each time they move?  Can they hear their own joints creak when they move (maybe that is just for the teachers)?
  3. Find a film clip(s) or use a willing student as a demonstration in a discussion--how to use silence to set people off guard.  How uncomfortable do we get when people just look at us without saying anything?  It's amazing how much of our insecurity we project into situations when we expect someone else to say something.
  4. Ask students for their own examples of when silence has changed their view of an experience or a conversation.
  5. Try watching a film clip or a sporting event without the sound of the announcers or the crowd--how much does sound fill us up emotionally and send us context clues as to how to respond?
  6. Talk with your local sign-language teacher about the role silence plays in the life of a deaf person--how is the world different for them?
  7. Have students write about how their lives would be different if there were no longer sounds in their lives?  
  8. I'm certain there are dozens more ideas--please feel free to add them in the comments section.

All in all, sound and silence is a fascinating set of topics.  During your vacation (or at least time away from school) I wish for you time to sit in quiet and time to reflect on all the good you do in your work with children. 

Some links for further reading--these are highly rated books that deal with the role of silence in our lives.










A paper that discusses how different cultures use silence in the communication process

Can Silence be Eloquent?
The Eight Core Values of the Japanese Businessman: Toward an Understanding of Japanese Management
A book about Japanese business that has a section on the importance of silence

posted by Chuck Schallhorn

Friday, November 19, 2010

Rob Gonsalves--Artist We All Know, But Don't

If you have been teaching psychology for very long, you've undoubtedly run into the work of Rob Gonsalves, a Canadian painter whose work is quite well known for the illusions that it contains.  Below are some samples.  A large portion of his work can be found at this link on Discover Galleries.







There are dozens more on the website linked above.


posted by Chuck Schallhorn

Thursday, November 18, 2010

Figure-Ground Artwork--3-dimensional

Scene360 has another nice set of examples of art that have figure-ground aspects built into them.  Great art.



posted by Chuck Schallhorn