CT2.0 » Scientific Reasoning http://inquiry.mcdaniel.edu Archive of examples of reasoning for use in Critical Thinking classrooms Tue, 17 Jan 2012 21:19:53 +0000 en hourly 1 http://wordpress.org/?v=3.1.1 Sensation & Perception – OpIvy http://inquiry.mcdaniel.edu/blog/2011/05/12/sensation-perception-opivy/ http://inquiry.mcdaniel.edu/blog/2011/05/12/sensation-perception-opivy/#comments Thu, 12 May 2011 11:40:01 +0000 admin http://inquiry.mcdaniel.edu/?p=3855

This is an update to a classroom demonstration that is a classic of cognitive psychology.  We present a short clip from an ambiguous song first without visual lyrics, and then with. We then ask the observer to rate their confidence that the lyrics they read matched the lyrics they heard. Any given observer has a 50-50 chance of getting the ‘correct’ lyrics (from the album insert) or lyrics from http://www.kissthisguy.com/.

]]> http://inquiry.mcdaniel.edu/blog/2011/05/12/sensation-perception-opivy/feed/ 0 Sensation & Perception – The Ramones http://inquiry.mcdaniel.edu/blog/2011/05/04/sensation-perception-the-ramones/ http://inquiry.mcdaniel.edu/blog/2011/05/04/sensation-perception-the-ramones/#comments Wed, 04 May 2011 11:22:06 +0000 admin http://inquiry.mcdaniel.edu/?p=3592

This is an update to a classroom demonstration that is a classic of cognitive psychology.  We present a short clip from an ambiguous song first without visual lyrics, and then with. We then ask the observer to rate their confidence that the lyrics they read matched the lyrics they heard. Any given observer has a 50-50 chance of getting the ‘correct’ lyrics (from the album insert) or lyrics from http://www.kissthisguy.com/.

 

]]> http://inquiry.mcdaniel.edu/blog/2011/05/04/sensation-perception-the-ramones/feed/ 0 Sensation & Perception – The Stones http://inquiry.mcdaniel.edu/blog/2011/05/04/sensation-perception-the-stones/ http://inquiry.mcdaniel.edu/blog/2011/05/04/sensation-perception-the-stones/#comments Wed, 04 May 2011 11:18:53 +0000 admin http://inquiry.mcdaniel.edu/?p=3589

This is an update to a classroom demonstration that is a classic of cognitive psychology.  We present a short clip from an ambiguous song first without visual lyrics, and then with. We then ask the observer to rate their confidence that the lyrics they read matched the lyrics they heard. Any given observer has a 50-50 chance of getting the ‘correct’ lyrics (from the album insert) or lyrics from http://www.kissthisguy.com/.

 

]]> http://inquiry.mcdaniel.edu/blog/2011/05/04/sensation-perception-the-stones/feed/ 0 Sensation & Perception demo – The Clash http://inquiry.mcdaniel.edu/blog/2011/05/04/sensation-perception-demo-the-clash/ http://inquiry.mcdaniel.edu/blog/2011/05/04/sensation-perception-demo-the-clash/#comments Wed, 04 May 2011 10:14:02 +0000 admin http://inquiry.mcdaniel.edu/?p=3582

This is an update to a classroom demonstration that is a classic of cognitive psychology.  We present a short clip from an ambiguous song first without visual lyrics, and then with. We then ask the observer to rate their confidence that the lyrics they read matched the lyrics they heard. Any given observer has a 50-50 chance of getting the ‘correct’ lyrics (from the album insert) or lyrics from http://www.kissthisguy.com/.

 

]]> http://inquiry.mcdaniel.edu/blog/2011/05/04/sensation-perception-demo-the-clash/feed/ 1 Sensation & Perception test – R.E.M. Lyrics http://inquiry.mcdaniel.edu/blog/2011/05/03/sensation-perception-test-r-e-m-lyrics/ http://inquiry.mcdaniel.edu/blog/2011/05/03/sensation-perception-test-r-e-m-lyrics/#comments Tue, 03 May 2011 21:35:37 +0000 admin http://inquiry.mcdaniel.edu/?p=3568

This is an update to a classroom demonstration that is a classic of cognitive psychology.  We present a short clip from an ambiguous song first without visual lyrics, and then with. We then ask the observer to rate their confidence that the lyrics they read matched the lyrics they heard. Any given observer has a 50-50 chance of getting the ‘correct’ lyrics (from the album insert) or lyrics from http://www.kissthisguy.com/.

]]> http://inquiry.mcdaniel.edu/blog/2011/05/03/sensation-perception-test-r-e-m-lyrics/feed/ 1 Scoville & Milner 1957: HM Case http://inquiry.mcdaniel.edu/blog/2011/03/24/scoville-milner-1957-hm-case/ http://inquiry.mcdaniel.edu/blog/2011/03/24/scoville-milner-1957-hm-case/#comments Thu, 24 Mar 2011 16:39:51 +0000 admin http://inquiry.mcdaniel.edu/?p=3068

Scoville and Milner. Loss of Recent Memory After Bilateral Hippocampal Lesions. Journal of Neurology, Neurosurgery and Psychiatry (1957) vol. 20 (11) pp. 11-21

In 1954 Scoville described a grave loss of recent memory which he had observed as a sequel to bilateral medial temporal lobe resection in one psychotic patient and one patient with intractableseizures. In both cases the operations had been radical ones, undertaken only when more conservative forms of treatment had failed. The removals extended posteriorly along the mesial surface of the temporal lobes for a distance of approximately 8 cm from the temporal tips and probably destroyed the anterior two-thirds of the hippocampus and hippocampal gyrus bilaterally, as well as the uncus and amygdala. The unexpected and persistent memory deficit which resulted seemed to us to merit further investigation. We have therefore carried out formal memory and intelligence testing of these two patients and also of eight other patients who had undergone similar, but less radical, bilateral medial temporal lobe resections. The present paper gives the results of these studies which point to the importance of the hippocampal complex for normal memory function. Whenever the hippocampus and hippocampal gyrus were damaged bilaterally in these operationssome memory deficit was found, but not otherwise. We have chosen to report these findings in full, partly for their theoretical significance, and partly as a warning to others of the risk to memory involved in bilateral surgical lesions of the hippocampal region.
For educational use only
Scoville and Milner. Loss of Recent Memory After Bilateral Hippocampal Lesions. Journal of Neurology, Neurosurgery and Psychiatry (1957) vol. 20 (11) pp. 11-21
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Full text available at: http://neuro.psychiatryonline.org/cgi/content/full/12/1/103-a

]]> http://inquiry.mcdaniel.edu/blog/2011/03/24/scoville-milner-1957-hm-case/feed/ 1 Gizmo – Orchestrating Multiple Research Strategies http://inquiry.mcdaniel.edu/blog/2011/03/24/gizmo-orchestrating-multiple-research-strategies/ http://inquiry.mcdaniel.edu/blog/2011/03/24/gizmo-orchestrating-multiple-research-strategies/#comments Thu, 24 Mar 2011 16:25:08 +0000 admin http://inquiry.mcdaniel.edu/?p=3061

In this version of Gizmo, we have collected all three strategies (recording activity, inhibiting components, and stimulating components) together, and allow you to orchestrate the strategies to figure out the mechanism:

]]> http://inquiry.mcdaniel.edu/blog/2011/03/24/gizmo-orchestrating-multiple-research-strategies/feed/ 0 Gizmo – Stimulating Components http://inquiry.mcdaniel.edu/blog/2011/03/24/gizmo-stimulating-components/ http://inquiry.mcdaniel.edu/blog/2011/03/24/gizmo-stimulating-components/#comments Thu, 24 Mar 2011 16:12:08 +0000 admin http://inquiry.mcdaniel.edu/?p=3056

The third common strategy in modeling a phenomenon is to stimulate the components directly. In this version of Gizmo, we provide a device (the lightening bolt) to allow for this strategy.

Try this by holding the stimulate icon over the left unit and clicking. Even with all the buttons on the control panel turned off, Gizmo’s legs start moving. What must be going on is that the left post is now active just as it would be if the right inputs had been received from the control panel.

]]> http://inquiry.mcdaniel.edu/blog/2011/03/24/gizmo-stimulating-components/feed/ 1 Gizmo – Inhibiting Components http://inquiry.mcdaniel.edu/blog/2011/03/24/gizmo-inhibiting-components/ http://inquiry.mcdaniel.edu/blog/2011/03/24/gizmo-inhibiting-components/#comments Thu, 24 Mar 2011 16:06:46 +0000 admin http://inquiry.mcdaniel.edu/?p=3050

A common second strategy in modeling a phenomenon is to inhibit (or ‘lesion’) the activity of the components. In this version of Gizmo, we provide a device (the scalpel) to allow for this strategy.

Try this by holding the scalpel over the left post and press its button while the 1 and 2 buttons on the control panel are depressed. Gizmo’s legs and antennae should stop moving, but his tail will continue to move. What is this probe doing? Move the probe to the center button. Gizmo’s legs move again, but now the antennae and tail stop moving. The scalpel inhibits the operation of the unit over which it is being held.

]]> http://inquiry.mcdaniel.edu/blog/2011/03/24/gizmo-inhibiting-components/feed/ 0 Gizmo – Recording activity http://inquiry.mcdaniel.edu/blog/2011/03/24/gizmo-recording-activity/ http://inquiry.mcdaniel.edu/blog/2011/03/24/gizmo-recording-activity/#comments Thu, 24 Mar 2011 13:51:52 +0000 admin http://inquiry.mcdaniel.edu/?p=3036

An important first strategy in modeling a phenomenon is recording the activity of the components. In this version of Gizmo, we provide a recording device (the magnifying glass) to allow for this strategy.

Try this now by clicking on the magnifying glass in the simulation below, move it over the the center post, while also making sure the left control panel button is depressed. You’ll see that the center post is on (symbolized by the value ‘TRUE’). Now do the same with the left post. In this case, the post is off (symbolized by the value ‘FALSE’). Now change the setting of the buttons on the control panel so that both the left and center button are depressed. Now when you probe the left post, it has a value of ‘TRUE’. It seems that this probe detects when there is current running through the interior post.

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