• Publications
  • Influence
Birdsong and Singing Behavior
  • H. Williams
  • Psychology, Medicine
  • Annals of the New York Academy of Sciences
  • 1 June 2004
Abstract: Birdsong provides neuroscientists with a uniquely powerful model for studying imitative vocal learning in a system where the brain structures responsible for song learning and productionExpand
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Changes in adult zebra finch song require a forebrain nucleus that is not necessary for song production.
Male zebra finches normally crystallize song at approximately 90 days and do not show vocal plasticity as adults. However, changes to adult song do occur after unilateral tracheosyringeal (ts) nerveExpand
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Auto-maintenance in the pigeon: sustained pecking despite contingent non-reinforcement.
If a response key is regularly illuminated for several seconds before food is presented, pigeons will peck it after a moderate number of pairings; this "auto-shaping" procedure of Brown and JenkinsExpand
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Choreography of song, dance and beak movements in the zebra finch (Taeniopygia guttata).
  • H. Williams
  • Biology, Medicine
  • The Journal of experimental biology
  • 15 October 2001
As do many songbirds, zebra finches sing their learned songs while performing a courtship display that includes movements of the body, head and beak. The coordination of these display components wasExpand
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Temporal patterning of song production: participation of nucleus uvaeformis of the thalamus.
Birdsong is a learned vocal behavior used in intraspecific communication. The motor pathway serving learned vocalizations includes the forebrain nuclei NIf, HVC, and RA; RA projects to midbrain andExpand
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Changes in stereotyped central motor patterns controlling vocalization are induced by peripheral nerve injury.
Adult male zebra finches (Taeniopygia guttata), as closed-ended learners, normally crystallize their songs at 90 days of age, and the song remains fixed throughout life (Price, 1979). We show thatExpand
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Song learning in birds: the relation between perception and production.
The vocal control system of oscine songbirds has some perplexing properties--e.g. laterality, adult neurogenesis, neuronal replacement--that are not predicted by common views of how vocal learningExpand
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High Levels of New Neuron Addition Persist When the Sensitive Period for Song Learning Is Experimentally Prolonged
Socially reared zebra finch males imitate a song they hear during posthatching days 30–65; during this time, many new neurons are added to the high vocal center (HVC), a forebrain nucleus necessaryExpand
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Right-side dominance for song control in the zebra finch.
Adult male zebra finches underwent unilateral denervation of the syrinx or unilateral lesion of the forebrain nucleus HVC known to be important for song control. Disruptive effects on song wereExpand
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The moderating role of personality factors in the relationship between depression and neuropsychological functioning among older adults
Depression is often associated with decreased cognitive performance among older adults. The current study focused on the association of neuropsychological functioning and personality traits inExpand
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