Hierarchical Organization in Auditory Cortex of the Cat Using High-Field Functional Magnetic Resonance Imaging

.............................................................................................................................. ii Dedication .......................................................................................................................... iii List of Tables ...................................................................................................................... x List of Figures .................................................................................................................... xi List of Abbreviations ....................................................................................................... xiii 1 Chapter 1 – Introduction ............................................................................................. 1 1.1 Defining Cortical Areas .......................................................................................... 1 1.1.1 Structural ..................................................................................................... 2 1.1.2 Functional ................................................................................................... 4 1.2 Auditory Cortex ...................................................................................................... 7 1.2.1 Human and Monkey Auditory Cortex ........................................................ 7 1.2.2 Cat Auditory Cortex .................................................................................. 11 1.2.3 Hierarchical Organization ......................................................................... 13 1.3 fMRI and Audition ................................................................................................ 14 1.4 Current Investigation ............................................................................................ 17 1.4.1 Chapter 2: There’s more than one way to scan a cat: Imaging cat auditory cortex with high-field fMRI using continuous or sparse sampling........... 17 1.4.2 Chapter 3: High-field fMRI reveals tonotopically organized and core auditory cortex in the cat........................................................................... 18 1.4.3 Chapter 4: The cat’s meow: A high-field fMRI assessment of cortical activity in response to vocalizations and complex auditory stimuli. ........ 19 1.5 References ............................................................................................................. 19 2 Chapter 2 – There’s More Than One Way to Scan a Cat: Imaging Cat Auditory Cortex with High-Field fMRI using Continuous or Sparse Sampling .................. 32 2.1 Abstract ................................................................................................................. 32 2.2 Introduction ........................................................................................................... 33