Max' Notizen

To-Do's Bachelorarbeit

📝 Zuletzt geändert: (heute) 🆕📊 1545 Wörter

Open Tasks (auto-collected 2026-05-01)

Supervisor Feedback — Meeting 22.04.2026

  • BrainRest: decide how to mention it — describe analysis approach without naming dataset?
    • soll ich nicht erwähnen, nur die methoden.
  • Negative predictions: address in Results + Discussion
  • Ceiling effect in left hemisphere behavioral prediction (language story accuracy) — discuss as limitation
  • Find Soyuhos PPA/FFA paper (Human Brain Mapping) — cite in Methods as methodological precedent
  • Offline vs. online tasks in fMRI scanner context — find paper title, add to Methods
  • zu allen figures: z scores reinschreiben!
  • NIHL noise comp schreiben, dass es offline ist

Introduction — Open Content

1.0 Introduction

  • Write 1.1.1: classic visual model (two streams hypothesis) ← written in 1.1 file
  • Write 1.1.2: state of the art in auditory cortex / auditory dual-stream history ← written in 1.1 file
  • Write 1.1.3: Introduction to dual-stream processing ← confirmed done 2026-05-01

1.2 The Gap — Top-Down Control of Auditory Streams

  • Argue: we know those paths exist, but who controls them? ← confirmed done 2026-05-01
  • Introduce top-down attention concept ← confirmed done 2026-05-01
  • Comparison to Bedini & Baldauf (2021) ← confirmed done 2026-05-01
  • Make research gap explicit: does the FEF/IFJa dissociation hold for the auditory domain? ← confirmed done 2026-05-01

1.3 Hypothesis — A Supramodal Organization

  • State: prefrontal organization is supramodal ← confirmed done 2026-05-01
  • Prediction 1: FEF controls auditory dorsal stream ← confirmed done 2026-05-01
  • Prediction 2: IFJa controls auditory ventral stream ← confirmed done 2026-05-01

1.1 The Auditory Dual-Stream Framework

  • Write historical section ← confirmed done 2026-05-01

Theoretical Background — Open Content

2.1 The Auditory What (Ventral) Stream

  • Definition ← confirmed done 2026-05-01
  • Function ← confirmed done 2026-05-01
  • Lateralization differences ← confirmed done 2026-05-01
  • Anatomy (Rolls Group 1) ← confirmed done 2026-05-01

2.2 The Auditory Where (Dorsal) Stream

  • 2.2.1 Debate: Rauschecker vs. Hickok & Poeppel (where vs. how) ← confirmed done 2026-05-01
  • 2.2.2 Anatomical Definition & Evidence ← confirmed done 2026-05-01
  • 2.2.3 Synthesis ← confirmed done 2026-05-01

Phase 3 — Writing & Language

  • Language sweep: replace “control”, “drives”, “directs” → “couples with”, “shows functional connectivity”, “is associated with”, “suggests a top-down influence” throughout all sections
  • Remove alpha/beta rhythm references → replace with fMRI-only structural/functional framing
  • 5.2 section title capitalisation — check consistency across all files (“auditory where stream” vs “Auditory Where Stream”)
  • 5.1.md line 53: inline note → und hier nochmal single seed 55b anschauen — check if still needed or covered by 4.5
  • Embed Romanski (1999) in Introduction
  • Embed Salmi (2009/2025) — FEF auditory connectivity
  • Cite Tavor (2026) in Methods (resting-state task activity predictions)

Discussion — Open Content

5.1.4 Supramodal Prefrontal Architecture

  • Write section: same two hubs (FEF, IFJa) organize top-down control across vision and audition ← prose exists in 5.1 file
  • Argue: general-purpose attention hubs — spatial/non-spatial axis cuts across modalities ← covered
  • Add evolutionary efficiency argument (Bedini & Baldauf 2021) ← covered
  • Add caveat: resting-state coupling is correlational — top-down directionality requires MEG or effective connectivity ← covered
  • Check wording + sources (still needed)

5.2 Re-evaluating the auditory where stream

  • Discuss how vs. where distinction ← written in 5.2.2
  • Argue: how-pathway / dorsal stream as spatial-motor integration ← written in 5.2.2
  • Explain FEF vs. 55b: FEF = more spatial, 55b = more language ← written in 5.2.3
  • Argue both FEF and 55b are important but with different functional emphasis ← written in 5.2.3
  • Address Hickok sensorimotor integration → may relate more to 55b than FEF ← written in 5.2.2
  • 5.2.1 polish: MST sentences merged, Rauschecker & Scott integrated, summary sentence added ← done 2026-05-01
  • Check wording + sources (all of 5.2)

5.3 Re-evaluating the auditory what stream ← prose written 2026-05-01

  • Define core argument ← covered in 5.3.1
  • IFJa as semantic controller ← covered in 5.3.1
  • Discuss Rolls et al. (2023) groups in context of IFJa/44/45 ← covered in 5.3.2
  • A5 as auditory entry point ← 5.3.3 written
  • 5.3.2 gap: lateralization argument missing (bilateral IFJa → left-lateralized Broca complex) — add before final polish
  • Frame IFJa in context of multiple demand system (Bedini & Baldauf 2021) — not yet in prose
  • Check wording + sources

5.4 Anatomical Ambiguities

  • Define core argument
  • A5: alignment with which stream?
  • PSL: reconcile Dureux, Rolls, and current results
  • STSdp: clarify stream assignment
  • STV hemispheric inversion — novel finding, needs discussion
  • Check wording + sources
  • Single-seed analysis mit A4/A5 als Seeds noch durchführen — dafür erst Nils nach seinen Account-Daten fragen (Zugang zu den HCP-Daten / CONN)

5.5 Predictive Modelling

  • Define core argument
  • Explain negative dorsal submodel prediction (R = −0.15 for Place task)
  • Discuss ceiling effect in left hemisphere for language story accuracy
  • Offline vs. online tasks in fMRI scanner — find paper, integrate into argument
  • Look up Glasser et al. (2016) SUPPL offline LANGUAGE-STORY task scores to compare
  • Discuss De Vries & Baldauf (2021) in this context
  • Check wording + sources

5.6 Hemispheric Lateralization ← section does not yet exist; mentioned in outline

  • Left hemisphere: confirmation of Hickok & Poeppel (2007) — bilateral/left-dominant speech pathway
  • Right hemisphere: Frühholz (2015) emotional prosody + Griffiths et al. (1998) auditory spatial right-lateralization
  • Create file 5.6 Hemispheric Lateralization.md once content is ready to write

5.8 / Limitations

  • resting-state fMRI is indirect — note as limitation ← written in 5.6 / 5.7
  • Glasser atlas is detailed but some areas (A4, A5) could be further subdivided ← written
  • No auditory spatial task in HCP dataset — limits behavioral validation for where-stream ← written
  • ROI exclusion: core areas (A1, MBelt) excluded → no statement about primary auditory cortex
  • Suggest future use of effective connectivity (DCM, Granger causality) to prove top-down direction ← section header exists, prose missing
  • Suggest future MEG study to see frequency-band signatures [De Vries et al. (2021)] ← section header exists, prose missing
  • Suggest dedicated auditory spatial task for Brain-Behavior validation ← mentioned in 5.6
  • Check wording + sources

Results — Open Content

4.1 Global Connectivity Patterns

  • FEF section too long, IFJa section too short — rebalance
  • Generate new plots with better visuals
  • Remove HCP language task section
  • Consider whether SLF (Superior Longitudinal Fasciculus) should be referenced
  • Validate seed regions (FEF, IFJa) — add to 4.1

4.2 Testing the “Where” Stream (FEF)

  • Reinstate motion areas MT/MST in the write-up
  • Check wording + sources

4.3 Testing the “What” Stream (IFJa)

  • Highlight strong connection to semantic system
  • Compare IFJa with IFJp
  • Compare with BA44/45/47l

4.4 Resolving Ambiguities

  • Define core argument of this chapter
  • Determine A5 alignment: does it couple more with IFJ or FEF?
  • Determine PSL alignment
  • Determine STV alignment
  • Check wording + sources

4.5 Functional Roles of Adjacent Areas

  • 55b as alternative dorsal seed → couples with dorsal language network, not spatial/motion
  • 44 vs. 45 dissociation within Broca complex
  • Argue: FEF drives spatial/motion-dorsal; 55b drives dorsal language stream

4.6 Behavioral Prediction

  • Write/complete this section ← confirmed done 2026-05-01

Methods — Open Content

3.1 Data Acquisition & Preprocessing — needs fleshing out

3.3 Matrix Construction

  • Explain CONN toolbox ← sections 3.3.1–3.3.6 written
  • 3.4.1 Explain functional connectivity (EC vs. RSFC distinction) ← written
  • 3.4.2 Partial vs. full correlation — explain difference ← written
  • 3.4.3 FDR correction — explain ← written
  • Define core argument ← methodological framework complete
  • Check wording + sources

3.4 Brain-Behavior Correlation

  • Explain predictive modelling approach (WM task / Language Story task) ← comprehensive coverage including 3.4.2.1–3.4.2.3
  • Clarify: use Language Story task for behavioral prediction ← done

3.2 Selection of ROIs

  • 3.3.1 Seed definition: FEF ← in 3.2.2
  • 3.3.1 Seed definition: IFJa ← in 3.2.2
  • 3.3.2 Target Definition: what-stream target list ← Table in 3.2.3
  • 3.3.2 Target Definition: where-stream target list ← Table in 3.2.3
  • Confirm MT/MST exclusion: link the paper showing absence of auditory responses in MT/MST
  • Shorten 3.2 — too many discussion points embedded; move them to Discussion section

References & Formatting

  • Fix Soyuhos year discrepancy: text cites 2022 in §1.1 and §3.3.6, references list has 2023 — update wikilinks to Soyuhos, O., & Baldauf, D. (2023)
  • Insert 4 uncited references: Wu-Minn HCP Consortium (2018) → §3.1.1; Romanski et al. (1999) → §2.0; Griffiths et al. (1998) → §2.2.1; Veniero et al. (2021) → §5.6.2
  • Import all citations from Zotero into 6.0 References.md

Research (ongoing)

  • Areale in Dorsal/ventral einteilen — decide final assignment
  • Which areas are visible on the Poeppel paper lateral view?
  • Find more sources where needed
  • Check AL/ML (monkey areas) — what is the human homologue?
  • Consider functional framing: space vs. semantic instead of dorsal/ventral
  • What does “Language” mean in the auditory stream context?

Completed

Phase 1 ✓

  • Informationen streamlinen und in die Areale packen
    • schauen, wo pST genau sit und welche Areale es abdeckt
  • Alle auditory areale für beide streams überprüfen. Für jedes Areal
    • anatomische Lage (vor Glasser eroieren)
      • frühere Begriffe auf Glasser mappen
      • in MatLab Atlas + MNI Daten übereinanderlegen
    • Funktion laut Glasser und anderen identifizieren
    • Zugehörigkeit zu dorsal oder ventral
    • typische PFC target regions ergänzen
  • Alles in eine Tabelle zusammenführen
    • für jedes Areal 1-2 Studien zitieren, die gut belegt sind
  • hemispheric differences? → beachten!
    • left: semantic, right: prosody → correct??

Phase 2 ✓

  • Prefrontal Target Regions definieren
  • Zuordnen, welcher Stream dorthin projiziert
  • Kategorien hinzufügen
    • dorsal = spatial/motor
    • ventral = object/semantic/social
  • Hypothese erstellen

Research ✓

  • wo ist der Herschl Gyrus? → Herschl Gyrus == A1
  • schauen wo die einzelnen areale im Glasser Atlas sind
  • wie wichtig sind functions? ist der auditory cortex involved in decisions?
  • Talairach for Brainstorm umrechnen
  • auditory spatial processing right lateralized? → beachtet
  • Glasser Atlas nach Auditory Cortex absuchen
  • Ahveninen Suppl. anschauen