Multi story memory

Presented to the seminar in
COGNITIVE SCIENCE

It wasn’t long ago that psychologists regarded memory as a single-thread of stimulus-response associations; strengthened by repetition. What went on between the time information was stored and retrieved was terra incognito. Memory was commonly thought to be a passive record of stimulus-events. Once events were stored, they became a reliable part of memory. The information was always there; forgetting was blamed on a failure of retrieval. The associative principles of memory no longer apply. They fail to capture clinical reports of patients with aphasia or Alzheimer’s. Aphasia patients can usually remember current events, but they forget long-term information such as the meaning of words or the names of familiar objects. On the other hand, Alzheimer’s patients can remember long-term information, such as the meaning of words, but they forget recent events such as a visit by a relative or their arrival at the clinic. These observations suggest different types of memory at work. Some temporarily hold events in our immediate surroundings while others preserve them on a more lasting basis.   

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Evolution of the neocortex

Findings of Comparative Neuro-Psychology

Presented to the seminar in
SOCIOBIOLOGY

Homage to the Tree Shrew

“The cerebral cortex, of all parts of the central nervous system, must be regarded as the most plastic in recent evolution, reflecting new behavioral requirements of niches carved out by increasingly complex relations between predator and prey, and the increasing demands for more subtle relationships within the species.”   Harting  (1973) ~>[Read more]

Recapitulation theory

Research proposal

Presented to the Seminar in Research Methods

The purpose of this experiment is to test the hypothesis that adults can learn languages as easy as children when the method of instruction simulates conditions found in early childhood.

Transcripts of early speech show a reliable trend. Language development occurs in stages that correspond to increasing degrees of derivational complexity. This means fewer and simpler transformational rules appear in children’s speech before larger sets of more complex rules begin to emerge. In addition, children learn their first language without formal training. It occurs spontaneously. There is no evidence of selective pressure for the development of well-formed sentences. It is an innate process that requires only participation in a verbal community.

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Second languages

Presented to the
Seminar in Learning Theory

Tribute to Noam Chomsky

A survey of the literature suggests that the same learning principles underlie both native and foreign languages. If the focus of instruction is on communicative intent, rather than phonological repetition, then learning a foreign language recapitulates the stages that children follow when learning their first language. Contrary to popular belief, adults may have an advantage over children. Chomsky’s review of Skinner’s ‘Verbal Behavior’ has been hailed as the most influential document in the history of psychology. Nowhere is this more evident than in the recent literature on language development ~>[Read more]

A neurological basis for hallucinatory experience

Senior Thesis

Presented to the Department of Psychology 

California State University, Long Beach

“Each person is capable of perceiving infinitely more. The universe is funneled through the reducing valve of the brain and nervous system ..what comes out at the other end is a measly trickle.”

From ‘The Doors of Perception’ by Aldous Huxley

Abstract: The Serotonin Hypothesis offers the most plausible explanation for hallucinatory experience in neuroscience. It is consistent with reports from Anthropologists describing the experience of people participating in Indian peyote ceremonies. It also comes close to reports by Clinical Psychologists documenting the experience of members of the psychiatric population. Neuroscience informs us that a major function of the central nervous system is to filter and reduce information reaching the brain to manageable and ‘culturally-relevant’ levels. The serotonin hypothesis tells us that hallucinations occur when these filters are lifted and areas of the brain involved with conscious experience are released from the constraints they are ordinarily under. Anthropologists report a similar process. They say that the guided peyote session serves to temporarily remove barriers inside the mind and allow for conscious-states that are not ordinarily accessible. I find this compelling evidence in support of the serotonin hypothesis as a model for hallucinatory experience. It also strengthens the argument that peyote sessions could serve as a useful method-of-investigation for Psychologists.

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