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# System prepended metadata

title: 'TF Theta, old anatomy'

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TF Theta, old anatomy
===

<font size=3> [Sentence Composition study] </font>
<u><b>Time-Frequency analysis results: Theta (2-8 Hz) </u></b>
Prediction: increased power for Anomalous or Unexpected compared to Expected

1. Unexpected - Expected

>a. Left
![](https://i.imgur.com/9dcqMA4.jpg)
<font size="2"><span style="color:black">- Increase for Expected>Unexpected at 200~600ms (could be the Left temporal pole effect shown at 200-500ms in evoked analysis) </span></font>

>b. Right
![](https://i.imgur.com/2xrWgcg.jpg)

>c. Bottom
![](https://i.imgur.com/SgQzPoE.jpg)
<font size="2"><span style="color:black">- Expected>Unexpected in temporal pole is visible at 300-600ms. <br> - Unexpected>Expected in right inferior frontal at 200-500ms </br> </span></font>

>d. Top
![](https://i.imgur.com/QHQOKWe.jpg)

>e. Front
![](https://i.imgur.com/OG4kEtq.jpg)

>f. Left medial
![](https://i.imgur.com/AnMxQJC.jpg)
<font size="2"><span style="color:black">- Unexpected > Expected in left precuneus area </span></font>


>g. Right medial
![](https://i.imgur.com/4u6ez14.jpg)
<font size="2"><span style="color:black">- Unexpected > Expected in right dorsomedial prefrontal (100-400ms), right cuneus area (400-700ms) </span></font>

<br></br>
2. Anomalous - Expected
>a. Left
![](https://i.imgur.com/TKPYPz1.jpg)
<font size="2"><span style="color:black"> - Mostly "more" activity for Anomalous in the left lateral surface. <span></font>

>b. Right
![](https://i.imgur.com/WYwi3i9.jpg)
    <font size="2"><span style="color:black"> - Similarly, more activity for Anomalous in the right lateral surface, but in the right occipital lobe, and in the right inferior frontal gyrus in later timing (600ms~). (An MEG research has reported increased theta for anomalous stimulus in the occipital area, but why do we see this pattern only in the right hemisphere? cf. "Top" view). </span></font>

>c. Bottom
![](https://i.imgur.com/25W1LJx.jpg)
<font size="2"><span style="color:black"> - Although seemingly weak, the left temporal pole effect (i.e., larger activity for "Expected") appears again in the 300-600ms. 
    - Anomalous > Expected in the right inferior frontal lobe at around 500ms and later. </span><span></font>
  

>d. Top
![](https://i.imgur.com/FOvK693.jpg)

>e. Front
![](https://i.imgur.com/J3QiAF7.jpg)

>f. Left medial
![](https://i.imgur.com/WWL2wqZ.jpg)
<font size="2"><span style="color:black">- Anomalous > Expected in left ventromedial prefrontal and left precuneus (400-700ms) </span></font>

>g. Right medial
![](https://i.imgur.com/QENDqGZ.jpg)

<br><br>
3. Unexpected - Anomalous 

>a. Left
![](https://i.imgur.com/GJ7XQ5i.jpg)
<font size="2"><span style="color:black">- Anomalous showing more activity than Unexpected in left temporal pole, ventral part of LIFG, areas along the Sylvian fissure. Increased theta for Anomalous than Unexpected seems to be consistent with prior literature on theta. </span></font>
    
>b. Right
![](https://i.imgur.com/VxgREmC.jpg)
<font size="2"><span style="color:black">- Increased activity for Anomalous than Unexpected in the right lateral occipital (200-500ms). This doesn't seem to be just a visual surprisal. </span></font>

>c. Bottom
![](https://i.imgur.com/H7x1VYr.jpg)
<font size="2"><span style="color:black">- Anomalous > Unexpected in the left temporal pole (400-700ms). At 300-600ms, there seems a small blob on the temporal pole, but the size is smaller than the Expected > Unexpected effect in the same region. </span></font>

>d. Top
![](https://i.imgur.com/XbUG1n3.jpg)

>e. Front
![](https://i.imgur.com/uA6To7i.jpg)

>f. Left medial
![](https://i.imgur.com/U8fuufd.jpg)

>g. Right medial
![](https://i.imgur.com/vB8L7iP.jpg)


4. Pseudo - Expected

>a. Left
![](https://i.imgur.com/jKsG0sw.jpg)

>b. Right
![](https://i.imgur.com/cUQwkqP.jpg)
<font size="2"><span style="color:black">- Increased activity for Pseudo than Expected in the right occipital and the RIFG (100-400ms). The right occipital increase shows up again at 400-800ms, and then Expected show more activity after 700ms and later. </span></font>

>c. Bottom
![](https://i.imgur.com/Pm5PDQM.jpg)
<font size="2"><span style="color:black">- the left temporal pole effect at 300-600ms appears again for Expected > Pseudo. These seem to indicate the sensitivity of left temporal pole to "expected" stimulus, at 300-600ms but not later. 
    - Expected > Pseudo in the ventral part of LIFG at 700ms and later. </span></font>

>d. Top
![](https://i.imgur.com/sm1NHUp.jpg)

>e. Front
![](https://i.imgur.com/qkFLBPa.jpg)
    <font size="2"><span style="color:black">   - Early effect of Pseudo > Expected at 100-400ms. </span></font>

>f. Left medial
![](https://i.imgur.com/8Adg04c.jpg)

>g. Right medial
![](https://i.imgur.com/fK400m4.jpg)
