Christopher J Machado
Biographic Data
| ID | 7832488 |
|---|---|
| NAME | Christopher J Machado |
| GIVEN NAMES | Christopher J |
| FAMILY NAME | Machado |
| SIGNATURE | MACHADO C J |
| AFFILIATIONS | University of California, Davis |
| ORCID | 0000-0001-6865-7429 |
| VERIFIED | Yes |
| TOTAL WORKS | 4 |
| TOTAL CITATIONS | 0 |
| WORKS AS AUTHOR | 4 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 2006 |
| LATEST PUBLICATION YEAR | 2017 |
| H-INDEX | 0 |
Monkeys preferentially process body information while viewing affective displays
Despite evolutionary claims about the function of facial behaviors across phylogeny, rarely are those hypotheses tested in a comparative context-that is, by evaluating how nonhuman animals process such behaviors. Further, while increasing evidence indicates that humans make meaning of faces by integrating contextual information, including that from the body, the extent to which nonhuman animals process contextual information during affective disp…
Eye‐tracking with nonhuman primates is now more accessible than ever before
Human and nonhuman primates rely almost exclusively on vision for social communication. Therefore, tracking eye movements and examining visual scan paths can provide a wealth of information about many aspects of primate social information processing. Although eye‐tracking techniques have been utilized with humans for some time, similar studies in nonhuman primates have been less frequent over recent decades. This has largely been owing to the nee…
Impact of amygdala, orbital frontal, or hippocampal lesions on threat avoidance and emotional reactivity in nonhuman primates
The authors measured the effects of bilateral amygdaloid, orbital frontal, or hippocampal lesions on emotional reactivity and passive avoidance in rhesus monkeys (Macaca mulatta). Animals were presented with 8 neutral or 8 aversive objects, each paired with a highly preferred food reward. Sham-operated control animals displayed heightened defensive behaviors and typically would not approach or retrieve the food when paired with a potential predat…
Amygdalectomy and responsiveness to novelty in rhesus monkeys (Macaca mulatta)
Rhesus monkeys (Macaca mulatta) with bilateral ibotenic acid-produced lesions of the amygdala were compared with controls in several novel situations, including exposures to metal objects, toy animals, and a person. Early in testing, the monkeys with lesions showed reduced inhibitions on responsiveness compared with controls. With continuing exposures, differences between groups diminished sharply as inhibitions waned in the controls. This outcom…
No prominent works on this page.
Amygdalectomy and responsiveness to novelty in rhesus monkeys (Macaca mulatta)
Rhesus monkeys (Macaca mulatta) with bilateral ibotenic acid-produced lesions of the amygdala were compared with controls in several novel situations, including exposures to metal objects, toy animals, and a person. Early in testing, the monkeys with lesions showed reduced inhibitions on responsiveness compared with controls. With continuing exposures, differences between groups diminished sharply as inhibitions waned in the controls. This outcom…
Impact of amygdala, orbital frontal, or hippocampal lesions on threat avoidance and emotional reactivity in nonhuman primates
The authors measured the effects of bilateral amygdaloid, orbital frontal, or hippocampal lesions on emotional reactivity and passive avoidance in rhesus monkeys (Macaca mulatta). Animals were presented with 8 neutral or 8 aversive objects, each paired with a highly preferred food reward. Sham-operated control animals displayed heightened defensive behaviors and typically would not approach or retrieve the food when paired with a potential predat…
Eye‐tracking with nonhuman primates is now more accessible than ever before
Human and nonhuman primates rely almost exclusively on vision for social communication. Therefore, tracking eye movements and examining visual scan paths can provide a wealth of information about many aspects of primate social information processing. Although eye‐tracking techniques have been utilized with humans for some time, similar studies in nonhuman primates have been less frequent over recent decades. This has largely been owing to the nee…
Monkeys preferentially process body information while viewing affective displays
Despite evolutionary claims about the function of facial behaviors across phylogeny, rarely are those hypotheses tested in a comparative context-that is, by evaluating how nonhuman animals process such behaviors. Further, while increasing evidence indicates that humans make meaning of faces by integrating contextual information, including that from the body, the extent to which nonhuman animals process contextual information during affective disp…
Psychology (4 works) · Memory and Neural Mechanisms (3 works) · Neuroscience (3 works) · Amygdala (2 works) · Biology (2 works) · Cognitive psychology (2 works) · Computer Science (2 works) · Developmental psychology (2 works) · Medicine (2 works) · Primate (2 works)