000002148 001__ 2148
000002148 005__ 20260601143740.0
000002148 0247_ $$2DOI$$a10.6083/M48S4N5V
000002148 037__ $$aETD
000002148 245__ $$aAdaptation of choice behavior in concurrent chains schedules and the role of the basolateral amygdala
000002148 260__ $$bOregon Health and Science University
000002148 269__ $$a2006
000002148 336__ $$aDissertation
000002148 502__ $$bPh.D.
000002148 520__ $$aThis study examined the role of the basolateral amygdala (BLA) in adapting behavior to changes in reinforcer value. Rats were trained to choose between rewards signaled by auditory cues, and reinforcer characteristics were systematically altered. While rats showed limited sensitivity to changes in cues or reinforcer quality, reversing reward magnitudes reduced preference for the previously larger reward. Lesions to the BLA before training impaired this adaptive response, but lesions after training did not. Findings support a key role for the BLA in linking sensory properties of outcomes to flexible, value-based decision-making.
000002148 540__ $$fCC BY
000002148 542__ $$fIn copyright - single owner
000002148 650__ $$aAmygdala$$014642
000002148 650__ $$aChoice Behavior$$016564
000002148 650__ $$aRats, Long-Evans$$032320
000002148 650__ $$aReinforcement, Psychology$$025288
000002148 650__ $$aConditioning, Operant$$017006
000002148 691__ $$aSchool of Medicine$$041369
000002148 692__ $$aDepartment of Behavioral Neuroscience$$041394
000002148 7001_ $$aHelms, Christa$$uOregon Health and Science University$$041354
000002148 7201_ $$aMitchell, Suzanne$$uOregon Health and Science University$$041354$$7Personal$$eMentor
000002148 8564_ $$94dec1150-26ed-4f54-9837-def769d1a851$$s4492324$$uhttps://digitalcollections.ohsu.edu/record/2148/files/2877_etd.pdf$$ePublic$$222920ef32b6694727370c5219712115d$$31
000002148 901__ $$a<p>These documents are archival records. They are retained for historical reference only. </p><p><b>Need an accessible version? Use the ‘Get Accessible Copy’ link above.</b></p>
000002148 905__ $$a/rest/prod/vt/15/0j/43/vt150j43d
000002148 909CO $$ooai:digitalcollections.ohsu.edu:2148$$pstudent-work
000002148 956__ $$aGet Accessible Copy$$uhttps://ohsu.libwizard.com/f/requestaccessibledocument
000002148 980__ $$aTheses and Dissertations