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Reading in the Brain Jakob Heinzle (Berlin) and Kevan Martin and K.H. (Zürich)

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Presentation on theme: "Reading in the Brain Jakob Heinzle (Berlin) and Kevan Martin and K.H. (Zürich)"— Presentation transcript:

1 Reading in the Brain Jakob Heinzle (Berlin) and Kevan Martin and K.H. (Zürich)

2 Outline Tutorial on the functional neuroanatomy of vision and eye-movements. Microcircuit model of the frontal eye fields. Biologically realistic cortical model of eye movement control in reading. Work in progress.

3 Cortex (man, left hemisphere)

4 Cortex (macaque, left hemisphere)

5 Visual areas in the macaque cortex

6 Neurons in the feline primary visual cortex V1

7 Microcircuit in V1

8 Eye muscles and motoneuron

9 Descending pathways for saccades

10 Reading enlarges the language representation in the cortex

11 Eye movements during reading

12 FEF model for saccades

13 Complete network architecture

14 Interactions: B excitatory, A inhibitory

15 MathBox

16 Network activity for a visual saccade

17 More complex saccade tasks are successfully implemented

18 FEF model naturally incorporates reading

19 FEF model during reading

20 Implementation of the reading rule

21 Normal reading and word skipping

22 Reading statistics

23 Error statistics

24 ? ?? ??? Many unsolved problems: Language, consiousness Simplification in the world of text processing: Reading imbedded in sensorimotor actions Question: what happens in the brain behind the eyeduring reading ?

25 Copy-Paste between a Pdf-file and a Powerpoint slide: Instructions 1.Click on the Adobe buttom. Go to the page containing Figure 1. Enlarge the image, by clicking on the arrow on the right of the white window and selecting 100%. Center the image. 2.Click on Werkzeuge on the second Adobe control bar. Move to Auswählen und Zoomen and follow the arrow into the context window down to Schnappschuss-Werkzeug. 3.Move the cross of the pointer to the left upper corner of Figure 1. Press the left mouse buttom, move it to the right lower corner and let go. 4.Change to Powerpoint,by clicking on its control buttom. Point into the slide and type Ctrl+V. Click into Figure 1 and center it in the content field. Type Architecture of the FEF model in the title field. 5.Click on Neue Folie. Move to Adobe Click on the Single Page button on the upper control bar and go to the page containing Figure 2. Repeat the same steps, without having to change again into the Schnappschuss- Werkzeug.

26 Nur jedem das Seine (BWV 163) Nur jedem das Seine! Muss Obrigkeit haben Zoll, Steuern und Gaben, Man weigre sich nicht Der schuldigen Pflicht! Doch bleibet das Herze dem Höchsten alleine.

27 Gott soll allein mein Herze haben (BWV 169) Stirb in mir, Welt und alle deine Liebe, Dass die Brust Sich auf Erden für und für In der Liebe Gottes übe; Stirb in mir, Hoffahrt, Reichtum, Augenlust, Ihr verworfnen Fleischestriebe!

28 Pointers J Heinzle, K Hepp, K Martin A microcircuit model of the frontal eye fields. J Neuroscience 27:9341 (2007). J Heinzle, K Hepp, K Martin A biologically realistic cortical model of eye movement control in reading. Psychological Review 117:808 (2010). Folien:


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